Grandpa Wang wants to fence a rectangular chicken coop with a length of 6 meters and a width of 4 meters in the yard. If one side of the chicken house is against the wall, how many meters should the fence be at least?
王爷爷要在院子里用篱笆围一个长6米，宽4米的长方形鸡舍．如果鸡舍的一边靠墙，那么篱笆至少要用多少米？
<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<gadget id="calculator">6 + 8</gadget>
<output>14</output>

<result>14</result>