Combine two rectangles with a length of 2 meters and a width of 1 meter to form a new rectangle. What is the perimeter of the new rectangle in meters?
把两个长2米，宽1米的长方形拼成1个新的长方形，新长方形的周长是多少米
<gadget id="calculator">2 + 2 + 1</gadget>
<output>5</output>

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<result>10</result>