The sum of the lengths of the sides of a cuboid is 76 cm, of which the length is 8 cm, the width is 7 cm, and the height is in cm.
一个长方体的棱长总和是76厘米，其中长是8厘米，宽是7厘米，高是多少厘米．
<gadget id="calculator">76 / 4</gadget>
<output>19</output>

<gadget id="calculator">8 + 7</gadget>
<output>15</output>

<gadget id="calculator">19 - 15</gadget>
<output>4</output>

<result>4</result>