When the five integers are arranged in ascending order, the median is 4, and the only mode is 6, then what is the largest sum of these five numbers?
当五个整数按从小到大的顺序排列后，中位数为4，唯一的一个众数是6，那么这五个数的和最大是多少．
<gadget id="calculator">2 + 3 + 4 + 6 + 6</gadget>
<output>21</output>

<result>21</result>