In a division formula, the sum of the dividend, divisor and quotient is 212. Given that the quotient is 2, what is the dividend?
在一个除法算式里，被除数、除数、商三个数的和是212．已知商是2，那么被除数是多少．
<gadget id="calculator">212 - 2</gadget>
<output>210</output>

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

<gadget id="calculator">210 / 3</gadget>
<output>70</output>

<gadget id="calculator">70 * 2</gadget>
<output>140</output>

<result>140</result>