Among 6 consecutive even numbers, the sum of the first number and the last one is 78. What is the largest of these 6?
有6个连续偶数中，第一个数与最后一个和是78．这6个中最大是多少．
<gadget id="calculator">78 + 10</gadget>
<output>88</output>

<gadget id="calculator">88 / 2</gadget>
<output>44</output>

<result>44</result>