The number of students in the four classes A, B, C, and D is different. If you randomly select two classes from these four classes each time, and write down the sum of the number of students in these two classes, you can get a total of six different numbers: 101, 98, 103, 105, 99, 106, then among these four classes, how many people are in the class with the least number of people.
甲、乙、丙、丁四个班的学生人数各不相同，如果从这四个班里每次任意取两个班，并将这两个班的学生人数之和记下，一共可得到六个不同的数：101、98、103、105、99、106，那么这四个班中，人数最少的班最少有多少人．
<result>48</result>