A rectangle is formed by combining two squares with side lengths of 2 decimeters. What is the perimeter of this rectangle in centimeters?
用两个边长为2分米的正方形拼成一个长方形．这个长方形的周长是多少厘米？
<gadget id="calculator">2 + 2 + 2</gadget>
<output>6</output>

<gadget id="calculator">6 * 2 * 10</gadget>
<output>120</output>

<result>120</result>