The number of apples in a box does not exceed 50, the number of 2 and 2 leaves 1, the number of 5 and 5 leaves 4, and the number of 3 and 3 just runs out. Q: How many apples are in this box?
一箱苹果的个数不超过50个，2个2个的数剩1个，5个5个的数剩4个，3个个3个的数正好数完．问：这箱苹果有多少个？
<result>39</result>