A 52 cm long iron wire can be welded into a rectangular parallelepiped frame. The length of the frame is 6 cm, the width is 4 cm, and the height is in cm.
用一根52厘米长的铁丝，恰好可以焊成一个长方体框架．框架长6厘米、宽4厘米、高多少厘米．
<gadget id="calculator">52 / 4</gadget>
<output>13</output>

<gadget id="calculator">6 + 4</gadget>
<output>10</output>

<gadget id="calculator">13 - 10</gadget>
<output>3</output>

<result>3</result>