Plant fruit trees on a square open space with a side length of 38 meters, and put a fence around the open space. How long is the fence?
在一块边长是38米的正方形空地上栽种果树，给这块空地四周围上栅栏，栅栏长多少米？
<gadget id="calculator">38 * 4</gadget>
<output>152</output>

<result>152</result>