 的值，输出这个值对 10^9 + 7 取模的结果；</div>
<div>&nbsp;2 l r：查询 &phi;(al &times; al+1 &times; &middot; &middot; &middot; &times; ar) 的值，输出这个值对 10^9 + 7 取模的结果。</div>
<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>输入的第一行包含两个正整