Use 5 small squares with a side length of 1 cm to form a rectangle. What is the perimeter of the rectangle in cm?
用5个边长1cm的小正方形拼成一个长方形，拼成的长方形周长是多少cm
<gadget id="calculator">1 * 5</gadget>
<output>5</output>

<gadget id="calculator">5 + 1</gadget>
<output>6</output>

<gadget id="calculator">6 * 2</gadget>
<output>12</output>

<result>12</result>