A rectangle with a length of 8 cm and a width of 6 cm is formed with a wire. How long is this wire in centimeters?
用一根铁丝围成一个长8厘米，宽6厘米的长方形，．这根铁丝长多少厘米．
<gadget id="calculator">8 + 6</gadget>
<output>14</output>

<gadget id="calculator">14 * 2</gadget>
<output>28</output>

<result>28</result>