The diameter of the trunk of a tree is 30 centimeters, and after a rope is wrapped around the tree 10 times, there is still 44 centimeters more. How long is this rope in centimeters?
一棵树的树干直径是30厘米，一根绳子绕树10圈后还多出44厘米．这根绳子长多少厘米．
<gadget id="calculator">3.14 * 30 * 10</gadget>
<output>942</output>

<gadget id="calculator">942 + 44</gadget>
<output>986</output>

<result>986</result>