A wire can surround a square with a side length of 8 decimeters. If it surrounds a rectangle with a width of 5 decimeters, how many decimeters is the length of this rectangle?
一根铁丝可以围城一个边长8分米的正方形，如果将它围城一个宽5分米的长方形，这个长方形的长是多少分米？
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

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

<gadget id="calculator">16 - 5</gadget>
<output>11</output>

<result>11</result>