What is the sum of all the multiples of 20 that do not exceed 2014 and are multiples of 14?
在所有20的倍数中不超过2014并且是14的倍数的数之和是多少．
<gadget id="calculator">140 + 1_960</gadget>
<output>2_100</output>

<gadget id="calculator">14 / 2</gadget>
<output>7</output>

<gadget id="calculator">2_100 * 7</gadget>
<output>14_700</output>

<result>14_700</result>