The lateral area of a cylinder is 31.4 square centimeters, and the circumference of the base is 6.28 centimeters. What is the volume of this cylinder in cubic centimeters?
一个圆柱体的侧面积是31.4平方厘米，底面周长是6.28厘米，这个圆柱体的体积是多少立方厘米？
<gadget id="calculator">6.28 / 3.14 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">31.4 / 6.28</gadget>
<output>5</output>

<gadget id="calculator">3.14 * 1 * 5</gadget>
<output>15.7</output>

<result>15.7</result>