77 + 22 = 99
115 + 26 = 143
2K3 - 1A1 = 1J2
2N + M = 3I
1+1=2
                                      1          -               1             =0
A + B = C
I + I = 10
A + A = 11
0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ + 1 = 0123456789ABCDEFGHIJKLMNOPQRSTUVWXZ0
0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ - 123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ = 0
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA + 1 = AAAAAAAAAAAAAAAAAAAAAAAAAAAAAB
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA - 1 = AAAAAAAAAAAAAAAAAAAAAAAAAAAAA9
 ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ + 1 = 10000000000000000000000000000000000000000000000000
ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ + 0 = ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
999999999999999999999999999999 + 1 = 1000000000000000000000000000000
999999999999999999999999999999 - 1 = 999999999999999999999999999998
999999999999999999999999999999 + 99999999999999999999998877665544 = 99IIIIIIIIIIIIIIIIIIIIHHGGFFEEDD
1234567890 + 9876543210 = 11111111100
Z + 1 = 10
Z - 1 = Y
1111111111111111111111111111111111111111111111111 + 1 = 10000000000000000000000000000000000000000000000000
1111111111111111111111111111111111111111111111111 - 1 = 1111111111111111111111111111111111111111111111110