The sum of the sides of a cuboid is 64cm, its length is 8cm, and its width is 3cm. What is its height in cm?
一个长方体它的棱长之和是64cm，它的长是8cm，宽是3cm，它的高是多少cm．
<gadget id="calculator">64 / 4</gadget>
<output>16</output>

<gadget id="calculator">8 + 3</gadget>
<output>11</output>

<gadget id="calculator">16 - 11</gadget>
<output>5</output>

<result>5</result>