Column formula calculation: the number of pears in a basket is between 40 and 50, and there is one more for 2 and 2 lands, and one more for 5 and 5 lands. How many pears are there in this basket?
列式计算：一筐梨的个数在40～50个之间，2个2个地分多一个，5个5个地分也多一个．这筐梨有多少个？
<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<gadget id="calculator">10 * 4</gadget>
<output>40</output>

<gadget id="calculator">40 + 1</gadget>
<output>41</output>

<result>41</result>