What is the circumference of the remaining rectangular paper after cutting out the largest square from a rectangular piece of paper with a length of 8 cm and a width of 5 cm?
将一张长8厘米，宽5厘米的长方形纸片剪去一个最大的正方形后，剩下的长方形纸片的周长是多少厘米．
<gadget id="calculator">8 - 5</gadget>
<output>3</output>

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

<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<result>16</result>