How many times is the perimeter of the large square equal to the perimeter of the small square when 4 identical small squares are put together to form a large square?
把4个完全相等的小正方形拼成一个大正方形，这个大正方形周长是一个小正方形周长的多少倍
<gadget id="calculator">1 * 1 * 2</gadget>
<output>2</output>

<gadget id="calculator">1 * 4</gadget>
<output>4</output>

<gadget id="calculator">4 / 4</gadget>
<output>1</output>

<gadget id="calculator">2 * 1</gadget>
<output>2</output>

<result>2</result>