There is a rectangular vegetable field, 5 meters long and 3 meters wide. If one long side of the vegetable field is against the wall, and the other three sides are surrounded by fences, how many meters is the minimum required for the fence?
有一块长方形的菜地，长5米，宽3米．如果菜地的一条长边靠墙，其它三边围上篱笆，篱笆至少需要多少米？
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">5 + 6</gadget>
<output>11</output>

<result>11</result>