wire surrounds a square with a side length of 7 cm, and the rest exactly forms a rectangle with a length of 12 cm and a width of 10 cm. What is the length of the wire in cm?
一根铁丝围成一个边长为7厘米的正方形，余下的正好围成一个长为12厘米，宽为10厘米的长方形，这根铁丝长多少厘米．
<gadget id="calculator">7 * 4</gadget>
<output>28</output>

<gadget id="calculator">12 + 10</gadget>
<output>22</output>

<gadget id="calculator">22 * 2</gadget>
<output>44</output>

<gadget id="calculator">28 + 44</gadget>
<output>72</output>

<result>72</result>