A 60 cm long iron wire can form a cuboid frame with a length of 5 cm, a width of 3 cm, and a height of cm.
一根60厘米长的铁丝，可以围成一个长5厘米、宽3厘米、高多少厘米的长方体框架．
<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<gadget id="calculator">5 + 3</gadget>
<output>8</output>

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

<result>7</result>