A snail climbs up from a dry well, climbs up 110 cm during the day, and slides down 40 cm at night. If it wants to climb to the mouth of the well during the day on the sixth day, how deep is the well at most?
蜗牛从一个枯井往上爬，白天向上爬110厘米，夜里向下滑40厘米，若要在第6天的白天爬到井口，这口井最多深多少厘米．
<gadget id="calculator">110 - 40</gadget>
<output>70</output>

<gadget id="calculator">70 * 5</gadget>
<output>350</output>

<gadget id="calculator">350 + 110</gadget>
<output>460</output>

<result>460</result>