Use a wire to form a rectangle with a length of 14 decimeters and a width of 12 decimeters. How long is this wire in decimeters?
用一根铁丝刚好围成一个长14分米，宽12分米的长方形．这根铁丝长是多少分米？
<gadget id="calculator">14 + 12</gadget>
<output>26</output>

<gadget id="calculator">26 * 2</gadget>
<output>52</output>

<result>52</result>