A 10-meter dry well, there is a frog at the bottom of the well, it climbs up 3 meters during the day, and slides down 2 meters at night, then when will the frog climb out of the dry well?
一个10米的枯井，井底有一只青蛙，它白天向上爬3米，到夜里往下滑2米，那么什么时候青蛙才能爬出枯井？
<gadget id="calculator">10 - 3</gadget>
<output>7</output>

<gadget id="calculator">3 - 2</gadget>
<output>1</output>

<gadget id="calculator">7 / 1</gadget>
<output>7</output>

<gadget id="calculator">7 + 1</gadget>
<output>8</output>

<result>8</result>