Currently Codeforces samples have no attributes in <pre> tag
E.g. https://codeforces.com/contest/1057/problem/A<div class="input"><div class="title">Input</div><pre>8<br />1 1 2 2 3 2 5<br /></pre></div><div class="output"><div class="title">Output</div><pre>1 2 5 8 </pre></div><div class="input">
Currently Codeforces samples have no attributes in
<pre>
tag E.g. https://codeforces.com/contest/1057/problem/A<div class="input"><div class="title">Input</div><pre>8<br />1 1 2 2 3 2 5<br /></pre></div><div class="output"><div class="title">Output</div><pre>1 2 5 8 </pre></div><div class="input">