A piece of iron wire is 100 cm long, cut off a section to make 8 square photo frames with a side length of 2 cm, how long is the rest?
一根铁丝长100厘米，剪下一段做了8个边长2厘米的正方形相架，剩下的长多少厘米？
<gadget id="calculator">2 * 4 * 8</gadget>
<output>64</output>

<gadget id="calculator">100 - 64</gadget>
<output>36</output>

<result>36</result>