If two small squares with a side length of 1 cm are put together, what is the perimeter of the resulting rectangle?
将两个边长是1厘米的小正方形拼在一起，这时拼成的长方形的周长是多少厘米
<gadget id="calculator">1 + 1</gadget>
<output>2</output>

<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<result>6</result>