The sum of the lengths of the sides of a cuboid is 60 cm, of which the length is 6 cm, the width is 5 cm, and the height is in cm.
一个长方体的棱长总和为60cm，其中长6cm，宽5cm，高是多少cm．
<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<gadget id="calculator">6 + 5</gadget>
<output>11</output>

<gadget id="calculator">15 - 11</gadget>
<output>4</output>

<result>4</result>