There is a group of tourists going out for travel. The total age of these tourists is 2012. Among them, the oldest is not more than 60 years old, the youngest is more than 25 years old, and there are no more than 2 people of the same age. How many people in this group of tourists are at least of different ages? Under 50 years old.
有一批游客出去旅游，这些游客年龄总和是2012岁，其中最大的年龄不超过60岁，最小的超过25岁，而且年龄相同的人数不超过2人，这批游客中至少有多少人的年龄不低于50岁．
<result>3</result>