diff --git a/docs/index.html b/docs/index.html
index c9a866b7f..99aee247c 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -1,5 +1,5 @@
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@@ -178,9 +178,9 @@
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@@ -197,9 +197,9 @@
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@@ -216,9 +216,9 @@
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+    <a href="assets/home/87aebdc4f7388bb2/../shared/media/bb169a96ca8316da/running_code.mp4">
+     <img alt="Running code example" class="intro-image" height="1082" src="assets/home/87aebdc4f7388bb2/../shared/images/f33a13e8331245ae/running_code-poster.webp" width="1600"/>
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diff --git a/en/docs/index.html b/en/docs/index.html
index f8be1c6c2..feba632aa 100644
--- a/en/docs/index.html
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   <a href="chapter_introduction/">
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+   <img alt="" data-hero-asset="astronaut" data-source-height="672" data-source-width="515" height="672" src="../assets/home/87aebdc4f7388bb2/../shared/images/8e5eb3b3e3ebd9f7/astronaut.webp" style="height: 46.673%; left: 35.413%; top: 24.343%;; aspect-ratio: 515 / 672" width="515"/>
    <span style="left: 52.244%; top: 20.919%;">
     Getting to know algorithms
    </span>
   </a>
   <a href="chapter_computational_complexity/">
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    <noscript>
-    <img alt="" height="178" src="../assets/home/8e54cf1d70453241/../shared/images/2fb425426d1f8d86/chapter_computational_complexity.webp" style="height: 12.347%; left: 36.267%; top: 37.653%;" width="113"/>
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    </noscript>
    <span style="left: 39.244%; top: 33.919%;">
     Complexity
    </span>
   </a>
   <a href="chapter_array_and_linkedlist/">
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    <noscript>
-    <img alt="" height="319" src="../assets/home/8e54cf1d70453241/../shared/images/5cbbdf7be555d3ef/chapter_array_and_linkedlist.webp" style="height: 22.242%; left: 73.242%; top: 52.481%;" width="468"/>
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    </noscript>
    <span style="left: 90.897%; top: 76.259%;">
     Arrays and linked lists
    </span>
   </a>
   <a href="chapter_stack_and_queue/">
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    <noscript>
-    <img alt="" height="204" src="../assets/home/8e54cf1d70453241/../shared/images/e2667767cf7481bd/chapter_stack_and_queue.webp" style="height: 14.302%; left: 62.646%; top: 77.875%;" width="204"/>
+    <img alt="" height="204" src="../assets/home/87aebdc4f7388bb2/../shared/images/e2667767cf7481bd/chapter_stack_and_queue.webp" style="height: 14.302%; left: 62.646%; top: 77.875%;" width="204"/>
    </noscript>
    <span style="left: 77.571%; top: 91.25%;">
     Stacks and queues
    </span>
   </a>
   <a href="chapter_hashing/">
-   <img alt="" data-hero-asset="chapter_hashing" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/b108d70a537714cb/chapter_hashing.webp" data-source-height="218" data-source-width="218" height="218" style="height: 15.266%; left: 63.281%; top: 27.933%;; aspect-ratio: 218 / 218" width="218"/>
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    <noscript>
-    <img alt="" height="218" src="../assets/home/8e54cf1d70453241/../shared/images/b108d70a537714cb/chapter_hashing.webp" style="height: 15.266%; left: 63.281%; top: 27.933%;" width="218"/>
+    <img alt="" height="218" src="../assets/home/87aebdc4f7388bb2/../shared/images/b108d70a537714cb/chapter_hashing.webp" style="height: 15.266%; left: 63.281%; top: 27.933%;" width="218"/>
    </noscript>
    <span style="left: 68.862%; top: 46.292%;">
     Hash tables
    </span>
   </a>
   <a href="chapter_tree/">
-   <img alt="" data-hero-asset="chapter_tree" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/8138bb0acecedec4/chapter_tree.webp" data-source-height="281" data-source-width="280" height="281" style="height: 19.615%; left: 80.137%; top: 26.678%;; aspect-ratio: 280 / 281" width="280"/>
+   <img alt="" data-hero-asset="chapter_tree" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/8138bb0acecedec4/chapter_tree.webp" data-source-height="281" data-source-width="280" height="281" style="height: 19.615%; left: 80.137%; top: 26.678%;; aspect-ratio: 280 / 281" width="280"/>
    <noscript>
-    <img alt="" height="281" src="../assets/home/8e54cf1d70453241/../shared/images/8138bb0acecedec4/chapter_tree.webp" style="height: 19.615%; left: 80.137%; top: 26.678%;" width="280"/>
+    <img alt="" height="281" src="../assets/home/87aebdc4f7388bb2/../shared/images/8138bb0acecedec4/chapter_tree.webp" style="height: 19.615%; left: 80.137%; top: 26.678%;" width="280"/>
    </noscript>
    <span style="left: 96.159%; top: 44.8%;">
     Trees
    </span>
   </a>
   <a href="chapter_heap/">
-   <img alt="" data-hero-asset="chapter_heap" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/7586281e6691807a/chapter_heap.webp" data-source-height="152" data-source-width="151" height="152" style="height: 10.566%; left: 77.226%; top: 11.559%;; aspect-ratio: 151 / 152" width="151"/>
+   <img alt="" data-hero-asset="chapter_heap" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/7586281e6691807a/chapter_heap.webp" data-source-height="152" data-source-width="151" height="152" style="height: 10.566%; left: 77.226%; top: 11.559%;; aspect-ratio: 151 / 152" width="151"/>
    <noscript>
-    <img alt="" height="152" src="../assets/home/8e54cf1d70453241/../shared/images/7586281e6691807a/chapter_heap.webp" style="height: 10.566%; left: 77.226%; top: 11.559%;" width="151"/>
+    <img alt="" height="152" src="../assets/home/87aebdc4f7388bb2/../shared/images/7586281e6691807a/chapter_heap.webp" style="height: 10.566%; left: 77.226%; top: 11.559%;" width="151"/>
    </noscript>
    <span style="left: 88.103%; top: 15.422%;">
     Heaps
    </span>
   </a>
   <a href="chapter_graph/">
-   <img alt="" data-hero-asset="chapter_graph" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/175a7f2e7c3cf5f0/chapter_graph.webp" data-source-height="272" data-source-width="542" height="272" style="height: 16.112%; left: 51.854%; top: 5.575%;; aspect-ratio: 542 / 272" width="542"/>
+   <img alt="" data-hero-asset="chapter_graph" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/175a7f2e7c3cf5f0/chapter_graph.webp" data-source-height="272" data-source-width="542" height="272" style="height: 16.112%; left: 51.854%; top: 5.575%;; aspect-ratio: 542 / 272" width="542"/>
    <noscript>
-    <img alt="" height="272" src="../assets/home/8e54cf1d70453241/../shared/images/175a7f2e7c3cf5f0/chapter_graph.webp" style="height: 16.112%; left: 51.854%; top: 5.575%;" width="542"/>
+    <img alt="" height="272" src="../assets/home/87aebdc4f7388bb2/../shared/images/175a7f2e7c3cf5f0/chapter_graph.webp" style="height: 16.112%; left: 51.854%; top: 5.575%;" width="542"/>
    </noscript>
    <span style="left: 71.195%; top: 6.503%;">
     Graphs
    </span>
   </a>
   <a href="chapter_searching/">
-   <img alt="" data-hero-asset="chapter_searching" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/ebfe2b953dbb9d90/chapter_searching.webp" data-source-height="216" data-source-width="216" height="216" style="height: 15.149%; left: 18.185%; top: 16.404%;; aspect-ratio: 216 / 216" width="216"/>
+   <img alt="" data-hero-asset="chapter_searching" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/ebfe2b953dbb9d90/chapter_searching.webp" data-source-height="216" data-source-width="216" height="216" style="height: 15.149%; left: 18.185%; top: 16.404%;; aspect-ratio: 216 / 216" width="216"/>
    <noscript>
-    <img alt="" height="216" src="../assets/home/8e54cf1d70453241/../shared/images/ebfe2b953dbb9d90/chapter_searching.webp" style="height: 15.149%; left: 18.185%; top: 16.404%;" width="216"/>
+    <img alt="" height="216" src="../assets/home/87aebdc4f7388bb2/../shared/images/ebfe2b953dbb9d90/chapter_searching.webp" style="height: 15.149%; left: 18.185%; top: 16.404%;" width="216"/>
    </noscript>
    <span style="left: 14.556%; top: 20.876%;">
     Searching
    </span>
   </a>
   <a href="chapter_sorting/">
-   <img alt="" data-hero-asset="chapter_sorting" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/9d4be68b2680967c/chapter_sorting.webp" data-source-height="137" data-source-width="138" height="137" style="height: 9.574%; left: 25.409%; top: 40.747%;; aspect-ratio: 138 / 137" width="138"/>
+   <img alt="" data-hero-asset="chapter_sorting" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/9d4be68b2680967c/chapter_sorting.webp" data-source-height="137" data-source-width="138" height="137" style="height: 9.574%; left: 25.409%; top: 40.747%;; aspect-ratio: 138 / 137" width="138"/>
    <noscript>
-    <img alt="" height="137" src="../assets/home/8e54cf1d70453241/../shared/images/9d4be68b2680967c/chapter_sorting.webp" style="height: 9.574%; left: 25.409%; top: 40.747%;" width="138"/>
+    <img alt="" height="137" src="../assets/home/87aebdc4f7388bb2/../shared/images/9d4be68b2680967c/chapter_sorting.webp" style="height: 9.574%; left: 25.409%; top: 40.747%;" width="138"/>
    </noscript>
    <span style="left: 28.805%; top: 53.808%;">
     Sorting
    </span>
   </a>
   <a href="chapter_divide_and_conquer/">
-   <img alt="" data-hero-asset="chapter_divide_and_conquer" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/6f5766ca9385cd2e/chapter_divide_and_conquer.webp" data-source-height="269" data-source-width="407" height="269" style="height: 18.681%; left: 32.721%; top: 4.816%;; aspect-ratio: 407 / 269" width="407"/>
+   <img alt="" data-hero-asset="chapter_divide_and_conquer" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/6f5766ca9385cd2e/chapter_divide_and_conquer.webp" data-source-height="269" data-source-width="407" height="269" style="height: 18.681%; left: 32.721%; top: 4.816%;; aspect-ratio: 407 / 269" width="407"/>
    <noscript>
-    <img alt="" height="269" src="../assets/home/8e54cf1d70453241/../shared/images/6f5766ca9385cd2e/chapter_divide_and_conquer.webp" style="height: 18.681%; left: 32.721%; top: 4.816%;" width="407"/>
+    <img alt="" height="269" src="../assets/home/87aebdc4f7388bb2/../shared/images/6f5766ca9385cd2e/chapter_divide_and_conquer.webp" style="height: 18.681%; left: 32.721%; top: 4.816%;" width="407"/>
    </noscript>
    <span style="left: 31.42%; top: 8.679%;">
     Divide and conquer
    </span>
   </a>
   <a href="chapter_backtracking/">
-   <img alt="" data-hero-asset="chapter_backtracking" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/176675e685febf11/chapter_backtracking.webp" data-source-height="249" data-source-width="345" height="249" style="height: 17.338%; left: 4.875%; top: 32.925%;; aspect-ratio: 345 / 249" width="345"/>
+   <img alt="" data-hero-asset="chapter_backtracking" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/176675e685febf11/chapter_backtracking.webp" data-source-height="249" data-source-width="345" height="249" style="height: 17.338%; left: 4.875%; top: 32.925%;; aspect-ratio: 345 / 249" width="345"/>
    <noscript>
-    <img alt="" height="249" src="../assets/home/8e54cf1d70453241/../shared/images/176675e685febf11/chapter_backtracking.webp" style="height: 17.338%; left: 4.875%; top: 32.925%;" width="345"/>
+    <img alt="" height="249" src="../assets/home/87aebdc4f7388bb2/../shared/images/176675e685febf11/chapter_backtracking.webp" style="height: 17.338%; left: 4.875%; top: 32.925%;" width="345"/>
    </noscript>
    <span style="left: 4.742%; top: 50.113%;">
     Backtracking
    </span>
   </a>
   <a href="chapter_dynamic_programming/">
-   <img alt="" data-hero-asset="chapter_dynamic_programming" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/06264b1ffd05b08e/chapter_dynamic_programming.webp" data-source-height="268" data-source-width="267" height="268" style="height: 15.47%; left: 9.406%; top: 57.472%;; aspect-ratio: 267 / 268" width="267"/>
+   <img alt="" data-hero-asset="chapter_dynamic_programming" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/06264b1ffd05b08e/chapter_dynamic_programming.webp" data-source-height="268" data-source-width="267" height="268" style="height: 15.47%; left: 9.406%; top: 57.472%;; aspect-ratio: 267 / 268" width="267"/>
    <noscript>
-    <img alt="" height="268" src="../assets/home/8e54cf1d70453241/../shared/images/06264b1ffd05b08e/chapter_dynamic_programming.webp" style="height: 15.47%; left: 9.406%; top: 57.472%;" width="267"/>
+    <img alt="" height="268" src="../assets/home/87aebdc4f7388bb2/../shared/images/06264b1ffd05b08e/chapter_dynamic_programming.webp" style="height: 15.47%; left: 9.406%; top: 57.472%;" width="267"/>
    </noscript>
    <span style="left: 8.561%; top: 75.351%;">
     Dynamic programming
    </span>
   </a>
   <a href="chapter_greedy/">
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+   <img alt="" data-hero-asset="chapter_greedy" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/2ce6caaac951c40b/chapter_greedy.webp" data-source-height="202" data-source-width="265" height="202" style="height: 14.127%; left: 23.132%; top: 75.803%;; aspect-ratio: 265 / 202" width="265"/>
    <noscript>
-    <img alt="" height="202" src="../assets/home/8e54cf1d70453241/../shared/images/2ce6caaac951c40b/chapter_greedy.webp" style="height: 14.127%; left: 23.132%; top: 75.803%;" width="265"/>
+    <img alt="" height="202" src="../assets/home/87aebdc4f7388bb2/../shared/images/2ce6caaac951c40b/chapter_greedy.webp" style="height: 14.127%; left: 23.132%; top: 75.803%;" width="265"/>
    </noscript>
    <span style="left: 21.619%; top: 86.85%;">
     Greedy algorithms
@@ -178,9 +178,9 @@
     <a href="chapter_hello_algo/">
      <div style="height: 4.34%;">
      </div>
-     <img alt="Web reading on a computer and phone" class="device-on-hover" data-home-src="../assets/home/8e54cf1d70453241/../shared/images/5b64cf7672ec5ec6/web_mac_iphone.webp" decoding="async" height="965" style="height: 66.31%;" width="1598"/>
+     <img alt="Web reading on a computer and phone" class="device-on-hover" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/5b64cf7672ec5ec6/web_mac_iphone.webp" decoding="async" height="965" style="height: 66.31%;" width="1598"/>
      <noscript>
-      <img alt="Web reading on a computer and phone" class="device-on-hover" height="965" loading="lazy" src="../assets/home/8e54cf1d70453241/../shared/images/5b64cf7672ec5ec6/web_mac_iphone.webp" style="height: 66.31%;" width="1598"/>
+      <img alt="Web reading on a computer and phone" class="device-on-hover" height="965" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/5b64cf7672ec5ec6/web_mac_iphone.webp" style="height: 66.31%;" width="1598"/>
      </noscript>
      <div style="height: 4.34%;">
      </div>
@@ -197,9 +197,9 @@
    </div>
    <div class="media-block">
     <a href="https://github.com/krahets/hello-algo/releases">
-     <img alt="PDF reading on a tablet" class="device-on-hover" data-home-src="../assets/home/8e54cf1d70453241/../shared/images/66baa2f9bf3abec7/pdf_ipad.webp" decoding="async" height="960" style="height: 75%;" width="812"/>
+     <img alt="PDF reading on a tablet" class="device-on-hover" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/66baa2f9bf3abec7/pdf_ipad.webp" decoding="async" height="960" style="height: 75%;" width="812"/>
      <noscript>
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+      <img alt="PDF reading on a tablet" class="device-on-hover" height="960" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/66baa2f9bf3abec7/pdf_ipad.webp" style="height: 75%;" width="812"/>
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       <span>
@@ -265,21 +265,21 @@
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-   <video aria-label="Animation example" class="intro-image" data-home-poster="../assets/home/8e54cf1d70453241/../shared/images/325eedad7e336423/en_animation-poster.webp" data-home-video="../assets/home/8e54cf1d70453241/../shared/media/99db238804bedf45/en_animation.mp4" height="864" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1280 / 864" width="1280">
+   <video aria-label="Animation example" class="intro-image" data-home-poster="../assets/home/87aebdc4f7388bb2/../shared/images/325eedad7e336423/en_animation-poster.webp" data-home-video="../assets/home/87aebdc4f7388bb2/../shared/media/99db238804bedf45/en_animation.mp4" height="864" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1280 / 864" width="1280">
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    <noscript>
-    <a href="../assets/home/8e54cf1d70453241/../shared/media/99db238804bedf45/en_animation.mp4">
-     <img alt="Animation example" class="intro-image" height="864" src="../assets/home/8e54cf1d70453241/../shared/images/325eedad7e336423/en_animation-poster.webp" width="1280"/>
+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/99db238804bedf45/en_animation.mp4">
+     <img alt="Animation example" class="intro-image" height="864" src="../assets/home/87aebdc4f7388bb2/../shared/images/325eedad7e336423/en_animation-poster.webp" width="1280"/>
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-   <video aria-label="Running code example" class="intro-image" data-home-poster="../assets/home/8e54cf1d70453241/../shared/images/615e2bcba0901fda/en_running_code-poster.webp" data-home-video="../assets/home/8e54cf1d70453241/../shared/media/8a8d9283cb37b664/en_running_code.mp4" height="864" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1280 / 864" width="1280">
+   <video aria-label="Running code example" class="intro-image" data-home-poster="../assets/home/87aebdc4f7388bb2/../shared/images/615e2bcba0901fda/en_running_code-poster.webp" data-home-video="../assets/home/87aebdc4f7388bb2/../shared/media/8a8d9283cb37b664/en_running_code.mp4" height="864" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1280 / 864" width="1280">
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     配列と連結リスト
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    <noscript>
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    <span style="left: 77.571%; top: 91.25%;">
     スタックとキュー
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   </a>
   <a href="chapter_hashing/">
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    <span style="left: 68.862%; top: 46.292%;">
     ハッシュテーブル
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    <span style="left: 96.159%; top: 44.8%;">
     木
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   </a>
   <a href="chapter_heap/">
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    <span style="left: 88.103%; top: 15.422%;">
     ヒープ
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+    <img alt="" height="272" src="../assets/home/87aebdc4f7388bb2/../shared/images/175a7f2e7c3cf5f0/chapter_graph.webp" style="height: 16.112%; left: 51.854%; top: 5.575%;" width="542"/>
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    <span style="left: 71.195%; top: 6.503%;">
     グラフ
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   </a>
   <a href="chapter_searching/">
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+    <img alt="" height="216" src="../assets/home/87aebdc4f7388bb2/../shared/images/ebfe2b953dbb9d90/chapter_searching.webp" style="height: 15.149%; left: 18.185%; top: 16.404%;" width="216"/>
    </noscript>
    <span style="left: 14.556%; top: 20.876%;">
     探索
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   </a>
   <a href="chapter_sorting/">
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    <noscript>
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+    <img alt="" height="137" src="../assets/home/87aebdc4f7388bb2/../shared/images/9d4be68b2680967c/chapter_sorting.webp" style="height: 9.574%; left: 25.409%; top: 40.747%;" width="138"/>
    </noscript>
    <span style="left: 28.805%; top: 53.808%;">
     ソート
    </span>
   </a>
   <a href="chapter_divide_and_conquer/">
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+   <img alt="" data-hero-asset="chapter_divide_and_conquer" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/6f5766ca9385cd2e/chapter_divide_and_conquer.webp" data-source-height="269" data-source-width="407" height="269" style="height: 18.681%; left: 32.721%; top: 4.816%;; aspect-ratio: 407 / 269" width="407"/>
    <noscript>
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    </noscript>
    <span style="left: 31.42%; top: 8.679%;">
     分割統治
    </span>
   </a>
   <a href="chapter_backtracking/">
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    <noscript>
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    <span style="left: 4.742%; top: 50.113%;">
     バックトラッキング
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   </a>
   <a href="chapter_dynamic_programming/">
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    <span style="left: 8.561%; top: 75.351%;">
     動的計画法
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   </a>
   <a href="chapter_greedy/">
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    <span style="left: 21.619%; top: 86.85%;">
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@@ -178,9 +178,9 @@
     <a href="chapter_hello_algo/">
      <div style="height: 4.34%;">
      </div>
-     <img alt="" class="device-on-hover" data-home-src="../assets/home/8e54cf1d70453241/../shared/images/5b64cf7672ec5ec6/web_mac_iphone.webp" decoding="async" height="965" style="height: 66.31%;" width="1598"/>
+     <img alt="" class="device-on-hover" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/5b64cf7672ec5ec6/web_mac_iphone.webp" decoding="async" height="965" style="height: 66.31%;" width="1598"/>
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+      <img alt="" class="device-on-hover" height="965" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/5b64cf7672ec5ec6/web_mac_iphone.webp" style="height: 66.31%;" width="1598"/>
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@@ -197,9 +197,9 @@
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     <a href="https://github.com/krahets/hello-algo/releases">
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+     <img alt="" class="device-on-hover" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/66baa2f9bf3abec7/pdf_ipad.webp" decoding="async" height="960" style="height: 75%;" width="812"/>
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+      <img alt="" class="device-on-hover" height="960" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/66baa2f9bf3abec7/pdf_ipad.webp" style="height: 75%;" width="812"/>
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@@ -270,21 +270,21 @@
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+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/6c70de2b2bf4eef7/animation.mp4">
+     <img alt="アルゴリズムの動きを示すアニメーション" class="intro-image" height="1080" src="../assets/home/87aebdc4f7388bb2/../shared/images/9e5f39bf33afc70f/animation-poster.webp" width="1600"/>
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+   <video aria-label="コードを実行する例" class="intro-image" data-home-poster="../assets/home/87aebdc4f7388bb2/../shared/images/f33a13e8331245ae/running_code-poster.webp" data-home-video="../assets/home/87aebdc4f7388bb2/../shared/media/bb169a96ca8316da/running_code.mp4" height="1082" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1082" width="1600">
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+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/bb169a96ca8316da/running_code.mp4">
+     <img alt="コードを実行する例" class="intro-image" height="1082" src="../assets/home/87aebdc4f7388bb2/../shared/images/f33a13e8331245ae/running_code-poster.webp" width="1600"/>
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@@ -332,11 +332,11 @@
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+   <video aria-label="コメントで学び合う例" class="intro-image" data-home-poster="../assets/home/87aebdc4f7388bb2/../shared/images/f9ac69536a7582f5/comment-poster.webp" data-home-video="../assets/home/87aebdc4f7388bb2/../shared/media/62aa0b8d351c63a7/comment.mp4" height="1080" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1080" width="1600">
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+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/62aa0b8d351c63a7/comment.mp4">
+     <img alt="コメントで学び合う例" class="intro-image" height="1080" src="../assets/home/87aebdc4f7388bb2/../shared/images/f9ac69536a7582f5/comment-poster.webp" width="1600"/>
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+      <img alt="著者：yudongjin" class="profile-img" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/02348410d40f7665/avatar_yudongjin.webp" decoding="async" height="512" width="512"/>
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+       <img alt="著者：yudongjin" class="profile-img" height="512" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/02348410d40f7665/avatar_yudongjin.webp" width="512"/>
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     해시 테이블
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     트리
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     힙
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    <span style="left: 71.195%; top: 6.503%;">
     그래프
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     탐색
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    <span style="left: 28.805%; top: 53.808%;">
     정렬
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    <span style="left: 31.42%; top: 8.679%;">
     분할 정복
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@@ -178,9 +178,9 @@
     <a href="chapter_hello_algo/">
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+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/6c70de2b2bf4eef7/animation.mp4">
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+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/bb169a96ca8316da/running_code.mp4">
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+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/62aa0b8d351c63a7/comment.mp4">
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+      <img alt="검토자: Reanon" class="profile-img" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/dcc15aa68cc793c7/avatar_Reanon.webp" decoding="async" height="384" width="384"/>
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@@ -547,9 +547,9 @@
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+      <img alt="검토자: rongyi" class="profile-img" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/5dc6c4b1d8bfe0ac/avatar_rongyi.webp" decoding="async" height="384" width="384"/>
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 </script>
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diff --git a/overrides/stylesheets/hero-motion.css b/overrides/stylesheets/hero-motion.css
index 0f7c58b87..9cd507a8b 100644
--- a/overrides/stylesheets/hero-motion.css
+++ b/overrides/stylesheets/hero-motion.css
@@ -178,6 +178,9 @@
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 }
 
+/* Chapter labels stay clickable above neighbouring transparent image hit boxes. */
+.hero-div > a > span { z-index: 1; }
+
 /* Metadata-only boxes reserve layout and native hit targets without downloading fallback art. */
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index 6b49e277f..3335b3ed9 100644
--- a/ru/docs/index.html
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+<link href="../assets/home/87aebdc4f7388bb2/hero-motion.css" rel="stylesheet"/>
 <noscript>
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    <span style="left: 49.244%; top: 22.2%;">
     Первое знакомство с алгоритмами
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   </a>
   <a href="chapter_computational_complexity/">
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+    <img alt="" height="319" src="../assets/home/87aebdc4f7388bb2/../shared/images/5cbbdf7be555d3ef/chapter_array_and_linkedlist.webp" style="height: 22.242%; left: 73.242%; top: 52.481%;" width="468"/>
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    <span style="left: 83.897%; top: 76.259%;">
     Массивы и списки
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    <span style="left: 77.571%; top: 91.25%;">
     Стеки и очереди
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    <span style="left: 68.862%; top: 46.292%;">
     Хеш-таблицы
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   </a>
   <a href="chapter_tree/">
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+   <img alt="" data-hero-asset="chapter_tree" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/8138bb0acecedec4/chapter_tree.webp" data-source-height="281" data-source-width="280" height="281" style="height: 19.615%; left: 80.137%; top: 26.678%;; aspect-ratio: 280 / 281" width="280"/>
    <noscript>
-    <img alt="" height="281" src="../assets/home/8e54cf1d70453241/../shared/images/8138bb0acecedec4/chapter_tree.webp" style="height: 19.615%; left: 80.137%; top: 26.678%;" width="280"/>
+    <img alt="" height="281" src="../assets/home/87aebdc4f7388bb2/../shared/images/8138bb0acecedec4/chapter_tree.webp" style="height: 19.615%; left: 80.137%; top: 26.678%;" width="280"/>
    </noscript>
    <span style="left: 96.159%; top: 44.8%;">
     Деревья
    </span>
   </a>
   <a href="chapter_heap/">
-   <img alt="" data-hero-asset="chapter_heap" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/7586281e6691807a/chapter_heap.webp" data-source-height="152" data-source-width="151" height="152" style="height: 10.566%; left: 77.226%; top: 11.559%;; aspect-ratio: 151 / 152" width="151"/>
+   <img alt="" data-hero-asset="chapter_heap" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/7586281e6691807a/chapter_heap.webp" data-source-height="152" data-source-width="151" height="152" style="height: 10.566%; left: 77.226%; top: 11.559%;; aspect-ratio: 151 / 152" width="151"/>
    <noscript>
-    <img alt="" height="152" src="../assets/home/8e54cf1d70453241/../shared/images/7586281e6691807a/chapter_heap.webp" style="height: 10.566%; left: 77.226%; top: 11.559%;" width="151"/>
+    <img alt="" height="152" src="../assets/home/87aebdc4f7388bb2/../shared/images/7586281e6691807a/chapter_heap.webp" style="height: 10.566%; left: 77.226%; top: 11.559%;" width="151"/>
    </noscript>
    <span style="left: 88.103%; top: 15.422%;">
     Кучи
    </span>
   </a>
   <a href="chapter_graph/">
-   <img alt="" data-hero-asset="chapter_graph" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/175a7f2e7c3cf5f0/chapter_graph.webp" data-source-height="272" data-source-width="542" height="272" style="height: 16.112%; left: 51.854%; top: 5.575%;; aspect-ratio: 542 / 272" width="542"/>
+   <img alt="" data-hero-asset="chapter_graph" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/175a7f2e7c3cf5f0/chapter_graph.webp" data-source-height="272" data-source-width="542" height="272" style="height: 16.112%; left: 51.854%; top: 5.575%;; aspect-ratio: 542 / 272" width="542"/>
    <noscript>
-    <img alt="" height="272" src="../assets/home/8e54cf1d70453241/../shared/images/175a7f2e7c3cf5f0/chapter_graph.webp" style="height: 16.112%; left: 51.854%; top: 5.575%;" width="542"/>
+    <img alt="" height="272" src="../assets/home/87aebdc4f7388bb2/../shared/images/175a7f2e7c3cf5f0/chapter_graph.webp" style="height: 16.112%; left: 51.854%; top: 5.575%;" width="542"/>
    </noscript>
    <span style="left: 71.195%; top: 6.503%;">
     Графы
    </span>
   </a>
   <a href="chapter_searching/">
-   <img alt="" data-hero-asset="chapter_searching" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/ebfe2b953dbb9d90/chapter_searching.webp" data-source-height="216" data-source-width="216" height="216" style="height: 15.149%; left: 18.185%; top: 16.404%;; aspect-ratio: 216 / 216" width="216"/>
+   <img alt="" data-hero-asset="chapter_searching" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/ebfe2b953dbb9d90/chapter_searching.webp" data-source-height="216" data-source-width="216" height="216" style="height: 15.149%; left: 18.185%; top: 16.404%;; aspect-ratio: 216 / 216" width="216"/>
    <noscript>
-    <img alt="" height="216" src="../assets/home/8e54cf1d70453241/../shared/images/ebfe2b953dbb9d90/chapter_searching.webp" style="height: 15.149%; left: 18.185%; top: 16.404%;" width="216"/>
+    <img alt="" height="216" src="../assets/home/87aebdc4f7388bb2/../shared/images/ebfe2b953dbb9d90/chapter_searching.webp" style="height: 15.149%; left: 18.185%; top: 16.404%;" width="216"/>
    </noscript>
    <span style="left: 14.556%; top: 20.876%;">
     Поиск
    </span>
   </a>
   <a href="chapter_sorting/">
-   <img alt="" data-hero-asset="chapter_sorting" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/9d4be68b2680967c/chapter_sorting.webp" data-source-height="137" data-source-width="138" height="137" style="height: 9.574%; left: 25.409%; top: 40.747%;; aspect-ratio: 138 / 137" width="138"/>
+   <img alt="" data-hero-asset="chapter_sorting" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/9d4be68b2680967c/chapter_sorting.webp" data-source-height="137" data-source-width="138" height="137" style="height: 9.574%; left: 25.409%; top: 40.747%;; aspect-ratio: 138 / 137" width="138"/>
    <noscript>
-    <img alt="" height="137" src="../assets/home/8e54cf1d70453241/../shared/images/9d4be68b2680967c/chapter_sorting.webp" style="height: 9.574%; left: 25.409%; top: 40.747%;" width="138"/>
+    <img alt="" height="137" src="../assets/home/87aebdc4f7388bb2/../shared/images/9d4be68b2680967c/chapter_sorting.webp" style="height: 9.574%; left: 25.409%; top: 40.747%;" width="138"/>
    </noscript>
    <span style="left: 28.805%; top: 53.808%;">
     Сортировка
    </span>
   </a>
   <a href="chapter_divide_and_conquer/">
-   <img alt="" data-hero-asset="chapter_divide_and_conquer" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/6f5766ca9385cd2e/chapter_divide_and_conquer.webp" data-source-height="269" data-source-width="407" height="269" style="height: 18.681%; left: 32.721%; top: 4.816%;; aspect-ratio: 407 / 269" width="407"/>
+   <img alt="" data-hero-asset="chapter_divide_and_conquer" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/6f5766ca9385cd2e/chapter_divide_and_conquer.webp" data-source-height="269" data-source-width="407" height="269" style="height: 18.681%; left: 32.721%; top: 4.816%;; aspect-ratio: 407 / 269" width="407"/>
    <noscript>
-    <img alt="" height="269" src="../assets/home/8e54cf1d70453241/../shared/images/6f5766ca9385cd2e/chapter_divide_and_conquer.webp" style="height: 18.681%; left: 32.721%; top: 4.816%;" width="407"/>
+    <img alt="" height="269" src="../assets/home/87aebdc4f7388bb2/../shared/images/6f5766ca9385cd2e/chapter_divide_and_conquer.webp" style="height: 18.681%; left: 32.721%; top: 4.816%;" width="407"/>
    </noscript>
    <span style="left: 28.42%; top: 8.679%;">
     Разделяй и властвуй
    </span>
   </a>
   <a href="chapter_backtracking/">
-   <img alt="" data-hero-asset="chapter_backtracking" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/176675e685febf11/chapter_backtracking.webp" data-source-height="249" data-source-width="345" height="249" style="height: 17.338%; left: 4.875%; top: 32.925%;; aspect-ratio: 345 / 249" width="345"/>
+   <img alt="" data-hero-asset="chapter_backtracking" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/176675e685febf11/chapter_backtracking.webp" data-source-height="249" data-source-width="345" height="249" style="height: 17.338%; left: 4.875%; top: 32.925%;; aspect-ratio: 345 / 249" width="345"/>
    <noscript>
-    <img alt="" height="249" src="../assets/home/8e54cf1d70453241/../shared/images/176675e685febf11/chapter_backtracking.webp" style="height: 17.338%; left: 4.875%; top: 32.925%;" width="345"/>
+    <img alt="" height="249" src="../assets/home/87aebdc4f7388bb2/../shared/images/176675e685febf11/chapter_backtracking.webp" style="height: 17.338%; left: 4.875%; top: 32.925%;" width="345"/>
    </noscript>
    <span style="left: 4.742%; top: 50.113%;">
     Поиск с возвратом
    </span>
   </a>
   <a href="chapter_dynamic_programming/">
-   <img alt="" data-hero-asset="chapter_dynamic_programming" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/06264b1ffd05b08e/chapter_dynamic_programming.webp" data-source-height="268" data-source-width="267" height="268" style="height: 15.47%; left: 9.406%; top: 57.472%;; aspect-ratio: 267 / 268" width="267"/>
+   <img alt="" data-hero-asset="chapter_dynamic_programming" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/06264b1ffd05b08e/chapter_dynamic_programming.webp" data-source-height="268" data-source-width="267" height="268" style="height: 15.47%; left: 9.406%; top: 57.472%;; aspect-ratio: 267 / 268" width="267"/>
    <noscript>
-    <img alt="" height="268" src="../assets/home/8e54cf1d70453241/../shared/images/06264b1ffd05b08e/chapter_dynamic_programming.webp" style="height: 15.47%; left: 9.406%; top: 57.472%;" width="267"/>
+    <img alt="" height="268" src="../assets/home/87aebdc4f7388bb2/../shared/images/06264b1ffd05b08e/chapter_dynamic_programming.webp" style="height: 15.47%; left: 9.406%; top: 57.472%;" width="267"/>
    </noscript>
    <span style="left: 6.561%; top: 75.351%;">
     Динамическое программирование
    </span>
   </a>
   <a href="chapter_greedy/">
-   <img alt="" data-hero-asset="chapter_greedy" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/2ce6caaac951c40b/chapter_greedy.webp" data-source-height="202" data-source-width="265" height="202" style="height: 14.127%; left: 23.132%; top: 75.803%;; aspect-ratio: 265 / 202" width="265"/>
+   <img alt="" data-hero-asset="chapter_greedy" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/2ce6caaac951c40b/chapter_greedy.webp" data-source-height="202" data-source-width="265" height="202" style="height: 14.127%; left: 23.132%; top: 75.803%;; aspect-ratio: 265 / 202" width="265"/>
    <noscript>
-    <img alt="" height="202" src="../assets/home/8e54cf1d70453241/../shared/images/2ce6caaac951c40b/chapter_greedy.webp" style="height: 14.127%; left: 23.132%; top: 75.803%;" width="265"/>
+    <img alt="" height="202" src="../assets/home/87aebdc4f7388bb2/../shared/images/2ce6caaac951c40b/chapter_greedy.webp" style="height: 14.127%; left: 23.132%; top: 75.803%;" width="265"/>
    </noscript>
    <span style="left: 20.619%; top: 86.85%;">
     Жадные алгоритмы
@@ -178,9 +178,9 @@
     <a href="chapter_hello_algo/">
      <div style="height: 4.34%;">
      </div>
-     <img alt="" class="device-on-hover" data-home-src="../assets/home/8e54cf1d70453241/../shared/images/5b64cf7672ec5ec6/web_mac_iphone.webp" decoding="async" height="965" style="height: 66.31%;" width="1598"/>
+     <img alt="" class="device-on-hover" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/5b64cf7672ec5ec6/web_mac_iphone.webp" decoding="async" height="965" style="height: 66.31%;" width="1598"/>
      <noscript>
-      <img alt="" class="device-on-hover" height="965" loading="lazy" src="../assets/home/8e54cf1d70453241/../shared/images/5b64cf7672ec5ec6/web_mac_iphone.webp" style="height: 66.31%;" width="1598"/>
+      <img alt="" class="device-on-hover" height="965" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/5b64cf7672ec5ec6/web_mac_iphone.webp" style="height: 66.31%;" width="1598"/>
      </noscript>
      <div style="height: 4.34%;">
      </div>
@@ -197,9 +197,9 @@
    </div>
    <div class="media-block">
     <a href="https://github.com/krahets/hello-algo/releases">
-     <img alt="" class="device-on-hover" data-home-src="../assets/home/8e54cf1d70453241/../shared/images/66baa2f9bf3abec7/pdf_ipad.webp" decoding="async" height="960" style="height: 75%;" width="812"/>
+     <img alt="" class="device-on-hover" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/66baa2f9bf3abec7/pdf_ipad.webp" decoding="async" height="960" style="height: 75%;" width="812"/>
      <noscript>
-      <img alt="" class="device-on-hover" height="960" loading="lazy" src="../assets/home/8e54cf1d70453241/../shared/images/66baa2f9bf3abec7/pdf_ipad.webp" style="height: 75%;" width="812"/>
+      <img alt="" class="device-on-hover" height="960" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/66baa2f9bf3abec7/pdf_ipad.webp" style="height: 75%;" width="812"/>
      </noscript>
      <div class="text-button">
       <span>
@@ -267,21 +267,21 @@
      </p>
     </div>
    </div>
-   <video aria-label="Animation example" class="intro-image" data-home-poster="../assets/home/8e54cf1d70453241/../shared/images/9e5f39bf33afc70f/animation-poster.webp" data-home-video="../assets/home/8e54cf1d70453241/../shared/media/6c70de2b2bf4eef7/animation.mp4" height="1080" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1080" width="1600">
+   <video aria-label="Animation example" class="intro-image" data-home-poster="../assets/home/87aebdc4f7388bb2/../shared/images/9e5f39bf33afc70f/animation-poster.webp" data-home-video="../assets/home/87aebdc4f7388bb2/../shared/media/6c70de2b2bf4eef7/animation.mp4" height="1080" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1080" width="1600">
    </video>
    <noscript>
-    <a href="../assets/home/8e54cf1d70453241/../shared/media/6c70de2b2bf4eef7/animation.mp4">
-     <img alt="Animation example" class="intro-image" height="1080" src="../assets/home/8e54cf1d70453241/../shared/images/9e5f39bf33afc70f/animation-poster.webp" width="1600"/>
+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/6c70de2b2bf4eef7/animation.mp4">
+     <img alt="Animation example" class="intro-image" height="1080" src="../assets/home/87aebdc4f7388bb2/../shared/images/9e5f39bf33afc70f/animation-poster.webp" width="1600"/>
      Анимированные схемы
     </a>
    </noscript>
   </div>
   <div class="intro-container">
-   <video aria-label="Running code example" class="intro-image" data-home-poster="../assets/home/8e54cf1d70453241/../shared/images/f33a13e8331245ae/running_code-poster.webp" data-home-video="../assets/home/8e54cf1d70453241/../shared/media/bb169a96ca8316da/running_code.mp4" height="1082" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1082" width="1600">
+   <video aria-label="Running code example" class="intro-image" data-home-poster="../assets/home/87aebdc4f7388bb2/../shared/images/f33a13e8331245ae/running_code-poster.webp" data-home-video="../assets/home/87aebdc4f7388bb2/../shared/media/bb169a96ca8316da/running_code.mp4" height="1082" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1082" width="1600">
    </video>
    <noscript>
-    <a href="../assets/home/8e54cf1d70453241/../shared/media/bb169a96ca8316da/running_code.mp4">
-     <img alt="Running code example" class="intro-image" height="1082" src="../assets/home/8e54cf1d70453241/../shared/images/f33a13e8331245ae/running_code-poster.webp" width="1600"/>
+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/bb169a96ca8316da/running_code.mp4">
+     <img alt="Running code example" class="intro-image" height="1082" src="../assets/home/87aebdc4f7388bb2/../shared/images/f33a13e8331245ae/running_code-poster.webp" width="1600"/>
      Запуск в один клик
     </a>
    </noscript>
@@ -329,11 +329,11 @@
      </p>
     </div>
    </div>
-   <video aria-label="Comments example" class="intro-image" data-home-poster="../assets/home/8e54cf1d70453241/../shared/images/f9ac69536a7582f5/comment-poster.webp" data-home-video="../assets/home/8e54cf1d70453241/../shared/media/62aa0b8d351c63a7/comment.mp4" height="1080" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1080" width="1600">
+   <video aria-label="Comments example" class="intro-image" data-home-poster="../assets/home/87aebdc4f7388bb2/../shared/images/f9ac69536a7582f5/comment-poster.webp" data-home-video="../assets/home/87aebdc4f7388bb2/../shared/media/62aa0b8d351c63a7/comment.mp4" height="1080" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1080" width="1600">
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    <noscript>
-    <a href="../assets/home/8e54cf1d70453241/../shared/media/62aa0b8d351c63a7/comment.mp4">
-     <img alt="Comments example" class="intro-image" height="1080" src="../assets/home/8e54cf1d70453241/../shared/images/f9ac69536a7582f5/comment-poster.webp" width="1600"/>
+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/62aa0b8d351c63a7/comment.mp4">
+     <img alt="Comments example" class="intro-image" height="1080" src="../assets/home/87aebdc4f7388bb2/../shared/images/f9ac69536a7582f5/comment-poster.webp" width="1600"/>
      Учимся вместе
     </a>
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@@ -349,9 +349,9 @@
    <div class="profile-div">
     <div class="profile-cell">
      <a href="https://github.com/krahets">
-      <img alt="Author: yudongjin" class="profile-img" data-home-src="../assets/home/8e54cf1d70453241/../shared/images/02348410d40f7665/avatar_yudongjin.webp" decoding="async" height="512" width="512"/>
+      <img alt="Author: yudongjin" class="profile-img" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/02348410d40f7665/avatar_yudongjin.webp" decoding="async" height="512" width="512"/>
       <noscript>
-       <img alt="Author: yudongjin" class="profile-img" height="512" loading="lazy" src="../assets/home/8e54cf1d70453241/../shared/images/02348410d40f7665/avatar_yudongjin.webp" width="512"/>
+       <img alt="Author: yudongjin" class="profile-img" height="512" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/02348410d40f7665/avatar_yudongjin.webp" width="512"/>
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@@ -370,9 +370,9 @@
    </p>
    <div class="profile-div">
     <div class="profile-cell translator-profile-cell">
-     <img alt="Translator: shevkun" class="profile-img" data-home-src="../assets/home/8e54cf1d70453241/../shared/images/91019a79d7ac4441/avatar_shevkun.webp" decoding="async" height="384" width="384"/>
+     <img alt="Translator: shevkun" class="profile-img" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/91019a79d7ac4441/avatar_shevkun.webp" decoding="async" height="384" width="384"/>
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-      <img alt="Translator: shevkun" class="profile-img" height="384" loading="lazy" src="../assets/home/8e54cf1d70453241/../shared/images/91019a79d7ac4441/avatar_shevkun.webp" width="384"/>
+      <img alt="Translator: shevkun" class="profile-img" height="384" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/91019a79d7ac4441/avatar_shevkun.webp" width="384"/>
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@@ -381,9 +381,9 @@
     </div>
     <div class="profile-cell translator-profile-cell">
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-      <img alt="Translator: yuyanhuang" class="profile-img" data-home-src="../assets/home/8e54cf1d70453241/../shared/images/f2c06730dacd8659/avatar_yuyanhuang.webp" decoding="async" height="512" width="512"/>
+      <img alt="Translator: yuyanhuang" class="profile-img" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/f2c06730dacd8659/avatar_yuyanhuang.webp" decoding="async" height="512" width="512"/>
       <noscript>
-       <img alt="Translator: yuyanhuang" class="profile-img" height="512" loading="lazy" src="../assets/home/8e54cf1d70453241/../shared/images/f2c06730dacd8659/avatar_yuyanhuang.webp" width="512"/>
+       <img alt="Translator: yuyanhuang" class="profile-img" height="512" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/f2c06730dacd8659/avatar_yuyanhuang.webp" width="512"/>
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@@ -403,9 +403,9 @@
    <div class="profile-div">
     <div class="profile-cell">
      <a href="https://github.com/coderonion">
-      <img alt="Reviewer: coderonion" class="profile-img" data-home-src="../assets/home/8e54cf1d70453241/../shared/images/db606f27971eae34/avatar_coderonion.webp" decoding="async" height="384" width="384"/>
+      <img alt="Reviewer: coderonion" class="profile-img" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/db606f27971eae34/avatar_coderonion.webp" decoding="async" height="384" width="384"/>
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+   <img alt="" data-hero-asset="chapter_heap" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/7586281e6691807a/chapter_heap.webp" data-source-height="152" data-source-width="151" height="152" style="height: 10.566%; left: 77.226%; top: 11.559%;; aspect-ratio: 151 / 152" width="151"/>
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+    <img alt="" height="152" src="../assets/home/87aebdc4f7388bb2/../shared/images/7586281e6691807a/chapter_heap.webp" style="height: 10.566%; left: 77.226%; top: 11.559%;" width="151"/>
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    <span style="left: 88.103%; top: 15.422%;">
     堆積
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   </a>
   <a href="chapter_graph/">
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+   <img alt="" data-hero-asset="chapter_graph" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/175a7f2e7c3cf5f0/chapter_graph.webp" data-source-height="272" data-source-width="542" height="272" style="height: 16.112%; left: 51.854%; top: 5.575%;; aspect-ratio: 542 / 272" width="542"/>
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+    <img alt="" height="272" src="../assets/home/87aebdc4f7388bb2/../shared/images/175a7f2e7c3cf5f0/chapter_graph.webp" style="height: 16.112%; left: 51.854%; top: 5.575%;" width="542"/>
    </noscript>
    <span style="left: 71.195%; top: 6.503%;">
     圖
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   </a>
   <a href="chapter_searching/">
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+   <img alt="" data-hero-asset="chapter_searching" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/ebfe2b953dbb9d90/chapter_searching.webp" data-source-height="216" data-source-width="216" height="216" style="height: 15.149%; left: 18.185%; top: 16.404%;; aspect-ratio: 216 / 216" width="216"/>
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+    <img alt="" height="216" src="../assets/home/87aebdc4f7388bb2/../shared/images/ebfe2b953dbb9d90/chapter_searching.webp" style="height: 15.149%; left: 18.185%; top: 16.404%;" width="216"/>
    </noscript>
    <span style="left: 14.556%; top: 20.876%;">
     搜尋
    </span>
   </a>
   <a href="chapter_sorting/">
-   <img alt="" data-hero-asset="chapter_sorting" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/9d4be68b2680967c/chapter_sorting.webp" data-source-height="137" data-source-width="138" height="137" style="height: 9.574%; left: 25.409%; top: 40.747%;; aspect-ratio: 138 / 137" width="138"/>
+   <img alt="" data-hero-asset="chapter_sorting" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/9d4be68b2680967c/chapter_sorting.webp" data-source-height="137" data-source-width="138" height="137" style="height: 9.574%; left: 25.409%; top: 40.747%;; aspect-ratio: 138 / 137" width="138"/>
    <noscript>
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+    <img alt="" height="137" src="../assets/home/87aebdc4f7388bb2/../shared/images/9d4be68b2680967c/chapter_sorting.webp" style="height: 9.574%; left: 25.409%; top: 40.747%;" width="138"/>
    </noscript>
    <span style="left: 28.805%; top: 53.808%;">
     排序
    </span>
   </a>
   <a href="chapter_divide_and_conquer/">
-   <img alt="" data-hero-asset="chapter_divide_and_conquer" data-hero-fallback="../assets/home/8e54cf1d70453241/../shared/images/6f5766ca9385cd2e/chapter_divide_and_conquer.webp" data-source-height="269" data-source-width="407" height="269" style="height: 18.681%; left: 32.721%; top: 4.816%;; aspect-ratio: 407 / 269" width="407"/>
+   <img alt="" data-hero-asset="chapter_divide_and_conquer" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/6f5766ca9385cd2e/chapter_divide_and_conquer.webp" data-source-height="269" data-source-width="407" height="269" style="height: 18.681%; left: 32.721%; top: 4.816%;; aspect-ratio: 407 / 269" width="407"/>
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+    <img alt="" height="269" src="../assets/home/87aebdc4f7388bb2/../shared/images/6f5766ca9385cd2e/chapter_divide_and_conquer.webp" style="height: 18.681%; left: 32.721%; top: 4.816%;" width="407"/>
    </noscript>
    <span style="left: 31.42%; top: 8.679%;">
     分治
    </span>
   </a>
   <a href="chapter_backtracking/">
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+   <img alt="" data-hero-asset="chapter_backtracking" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/176675e685febf11/chapter_backtracking.webp" data-source-height="249" data-source-width="345" height="249" style="height: 17.338%; left: 4.875%; top: 32.925%;; aspect-ratio: 345 / 249" width="345"/>
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+    <img alt="" height="249" src="../assets/home/87aebdc4f7388bb2/../shared/images/176675e685febf11/chapter_backtracking.webp" style="height: 17.338%; left: 4.875%; top: 32.925%;" width="345"/>
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    <span style="left: 4.742%; top: 50.113%;">
     回溯
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+   <img alt="" data-hero-asset="chapter_dynamic_programming" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/06264b1ffd05b08e/chapter_dynamic_programming.webp" data-source-height="268" data-source-width="267" height="268" style="height: 15.47%; left: 9.406%; top: 57.472%;; aspect-ratio: 267 / 268" width="267"/>
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+    <img alt="" height="268" src="../assets/home/87aebdc4f7388bb2/../shared/images/06264b1ffd05b08e/chapter_dynamic_programming.webp" style="height: 15.47%; left: 9.406%; top: 57.472%;" width="267"/>
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    <span style="left: 8.561%; top: 75.351%;">
     動態規劃
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   </a>
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+   <img alt="" data-hero-asset="chapter_greedy" data-hero-fallback="../assets/home/87aebdc4f7388bb2/../shared/images/2ce6caaac951c40b/chapter_greedy.webp" data-source-height="202" data-source-width="265" height="202" style="height: 14.127%; left: 23.132%; top: 75.803%;; aspect-ratio: 265 / 202" width="265"/>
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+    <img alt="" height="202" src="../assets/home/87aebdc4f7388bb2/../shared/images/2ce6caaac951c40b/chapter_greedy.webp" style="height: 14.127%; left: 23.132%; top: 75.803%;" width="265"/>
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     貪婪
@@ -178,9 +178,9 @@
     <a href="/chapter_paperbook/">
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+     <img alt="Cover" class="device-on-hover" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/dc5be783cea3a262/cover_render.webp" decoding="async" height="720" style="height: 66.83%;" width="535"/>
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+      <img alt="Cover" class="device-on-hover" height="720" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/dc5be783cea3a262/cover_render.webp" style="height: 66.83%;" width="535"/>
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@@ -197,9 +197,9 @@
     <a href="chapter_hello_algo/">
      <div style="height: 4.34%;">
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+     <img alt="" class="device-on-hover" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/5b64cf7672ec5ec6/web_mac_iphone.webp" decoding="async" height="965" style="height: 66.31%;" width="1598"/>
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@@ -216,9 +216,9 @@
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+     <img alt="" class="device-on-hover" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/66baa2f9bf3abec7/pdf_ipad.webp" decoding="async" height="960" style="height: 75%;" width="812"/>
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@@ -286,21 +286,21 @@
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+   <video aria-label="Animation example" class="intro-image" data-home-poster="../assets/home/87aebdc4f7388bb2/../shared/images/9e5f39bf33afc70f/animation-poster.webp" data-home-video="../assets/home/87aebdc4f7388bb2/../shared/media/6c70de2b2bf4eef7/animation.mp4" height="1080" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1080" width="1600">
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+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/6c70de2b2bf4eef7/animation.mp4">
+     <img alt="Animation example" class="intro-image" height="1080" src="../assets/home/87aebdc4f7388bb2/../shared/images/9e5f39bf33afc70f/animation-poster.webp" width="1600"/>
      動畫圖解
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+   <video aria-label="Running code example" class="intro-image" data-home-poster="../assets/home/87aebdc4f7388bb2/../shared/images/f33a13e8331245ae/running_code-poster.webp" data-home-video="../assets/home/87aebdc4f7388bb2/../shared/media/bb169a96ca8316da/running_code.mp4" height="1082" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1082" width="1600">
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+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/bb169a96ca8316da/running_code.mp4">
+     <img alt="Running code example" class="intro-image" height="1082" src="../assets/home/87aebdc4f7388bb2/../shared/images/f33a13e8331245ae/running_code-poster.webp" width="1600"/>
      一鍵執行
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+   <video aria-label="Comments example" class="intro-image" data-home-poster="../assets/home/87aebdc4f7388bb2/../shared/images/f9ac69536a7582f5/comment-poster.webp" data-home-video="../assets/home/87aebdc4f7388bb2/../shared/media/62aa0b8d351c63a7/comment.mp4" height="1080" loop="" muted="" playsinline="" preload="none" style="aspect-ratio: 1600 / 1080" width="1600">
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+    <a href="../assets/home/87aebdc4f7388bb2/../shared/media/62aa0b8d351c63a7/comment.mp4">
+     <img alt="Comments example" class="intro-image" height="1080" src="../assets/home/87aebdc4f7388bb2/../shared/images/f9ac69536a7582f5/comment-poster.webp" width="1600"/>
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+      <img alt="Author: yudongjin" class="profile-img" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/02348410d40f7665/avatar_yudongjin.webp" decoding="async" height="512" width="512"/>
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+       <img alt="Author: yudongjin" class="profile-img" height="512" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/02348410d40f7665/avatar_yudongjin.webp" width="512"/>
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+       <img alt="Reviewer: Shyam-Chen" class="profile-img" height="384" loading="lazy" src="../assets/home/87aebdc4f7388bb2/../shared/images/a635319ad4eaf2e9/avatar_Shyam-Chen.webp" width="384"/>
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@@ -600,9 +600,9 @@
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+      <img alt="Reviewer: rongyi" class="profile-img" data-home-src="../assets/home/87aebdc4f7388bb2/../shared/images/5dc6c4b1d8bfe0ac/avatar_rongyi.webp" decoding="async" height="384" width="384"/>
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@@ -633,7 +633,7 @@
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