Express 1988 as the sum of 28 consecutive even numbers, then what is the largest even number among them.
把1988表示成28个连续偶数的和，那么其中最大的那个偶数是多少．
<gadget id="calculator">22 + 27</gadget>
<output>49</output>

<gadget id="calculator">2 * 49</gadget>
<output>98</output>

<result>98</result>