cuboid with a square base is a square with side length 4 cm. What is the volume of the cuboid in cubic centimeters?
一个底面是正方形的长方体，把侧面展开是一个边长为4厘米的正方形，这个长方体的体积是多少立方厘米．
<gadget id="calculator">4 / 4</gadget>
<output>1</output>

<gadget id="calculator">1 * 1 * 4</gadget>
<output>4</output>

<result>4</result>