Aunt Wang wants to surround a chicken farm with a width of 10 meters and a width of 6 meters. If one side is against a wall, how many meters should the fence be at least?
王大妈想围一个10米，宽6米的养鸡场，如果一面靠墙，至少要篱笆多少米？
<gadget id="calculator">6 * 2</gadget>
<output>12</output>

<gadget id="calculator">12 + 10</gadget>
<output>22</output>

<result>22</result>