If the length of a rectangle is increased by 1 meter and the width remains the same, how many centimeters will its perimeter increase
一个长方形的长增加1米，宽不变，它的周长将增加多少厘米
<gadget id="calculator">1 * 2</gadget>
<output>2</output>

<gadget id="calculator">2 * 100</gadget>
<output>200</output>

<result>200</result>