Take three numbers from 1 to 6, the maximum sum is 4+5+6 = 15, and the minimum sum is 1+2+3 = 6.

So as long as you can list the numbers whose sum is 6 to 15.

6= 1+2+3

7= 1+2+4

8= 1+2+5

9= 1+2+6

10= 1+3+6

1 1= 1+4+6

12= 1+5+6

13=2+5+6

14=3+5+6

15=4+5+6

So * * * has 10 kinds.