Two identical rectangles have a length of 4 cm and a width of 3 cm. If you put them together to form a rectangle, what is the longest perimeter in cm?
两个同样的长方形，长是4厘米，宽是3厘米，用它们拼成一个长方形，周长最长是多少厘米？
<gadget id="calculator">4 + 4</gadget>
<output>8</output>

<gadget id="calculator">8 + 3</gadget>
<output>11</output>

<gadget id="calculator">11 * 2</gadget>
<output>22</output>

<result>22</result>