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><span style="font-size: medium">　　输入共M行。</span></div>
<div><span style="font-size: medium">　　每行的格式为X T，用一个空格隔开，X表示运算的种类，T为一个区间(区间用(a,b), (a,b], [a,b), [a,b]表示)。</span></div>
<div><span style="font-size: medium">&nbsp;</span></div></div></div></div></div></div><div 