A piece of iron wire is 24 cm long, and it is welded into a rectangular parallelepiped frame with a width and a height of 1 cm. What is the length of the rectangular parallelepiped frame in cm?
一根铁丝长24厘米，将它焊接成一个宽和高都是1厘米的长方体框架，这个长方体框架的长是多少厘米．
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">6 - 2</gadget>
<output>4</output>

<result>4</result>