nt-content"><div style="position: relative; overflow: hidden;"><p><a href="upload/5433.pdf">www.lydsy.com/JudgeOnline/upload/5433.pdf</a></p>
<p></p></div></div></div></div><div class="row"><div class="column"><h4 class="ui top attached block header">输入格式</h4><div class="ui bottom attached segment font-content"><div style="position: relative; overflow: hidden;"><div class=content></div></div></div></div></div><div class="row"><div class="column"><h4 class="ui top attached block header">输出格式