A road construction team builds a road, from May 1st to October 1st, how many days did it take to complete the project?
一个修路队修一条公路，从5月1日开工，到10月1日竣工，完成这项工程一共用了多少天．
<gadget id="calculator">31 * 3</gadget>
<output>93</output>

<gadget id="calculator">30 * 2</gadget>
<output>60</output>

<gadget id="calculator">93 + 60 + 1</gadget>
<output>154</output>

<result>154</result>