/h4><div class="ui bottom attached segment font-content"><div style="position: relative; overflow: hidden;"><div class=content><p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; text-indent: 20.25pt"><span style="font-size: 10.5pt; font-family: 'Times New Roman'; mso-spacerun: 'yes'">输入的第一行有<font face="Times New Roman">3</font><font face="宋体">个整数，</font><font face="Times New Roman">N</font><font face="宋体">，</font><font face="Times New Roman">M</font><font face="宋体"