How many centimeters is the perimeter of the rectangle if you put together 5 squares whose sides are 4 centimeters long?
把5个边长都是4厘米的正方形，拼成一个长方形，这个长方形的周长等于多少厘米
<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">4 + 20</gadget>
<output>24</output>

<gadget id="calculator">24 * 2</gadget>
<output>48</output>

<result>48</result>