The integers are 10, 11 and 12.
-11 and -10
They are: 10+11+12 = 33
They are 9, 10 and 11.
The integers are -11 and -10.
-11, -10, -9
36
The numbers are -11, -10, -9 and -8.
The numbers are -12, -11, -10, and -9.
-9, -10 and -11.
9+10+11=30
-8-9-10-11 = -38