The length of a rectangle is 10 cm, and the length is 3 cm longer than the width, what is the perimeter of the rectangle in cm
长方形的长是10厘米，长比宽多3厘米，这个长方形的周长是多少厘米
<gadget id="calculator">10 - 3</gadget>
<output>7</output>

<gadget id="calculator">10 + 7</gadget>
<output>17</output>

<gadget id="calculator">17 * 2</gadget>
<output>34</output>

<result>34</result>