Cut a piece of rectangular paper with a length of 36 cm and a width of 18 cm into two largest squares, what is the perimeter of one of the squares in cm?
把一张长36厘米，宽18厘米的长方形纸片，剪成两个最大的正方形，其中一个正方形的周长是多少厘米？
<gadget id="calculator">18 * 4</gadget>
<output>72</output>

<result>72</result>