A and B are two-digit numbers. Find A-B when A is 8 less than 23, and B plus 7 is 18.
23 8 [OP_SUB] 18 7 [OP_SUB] [OP_SUB]
var_a = 23
var_b = 8
var_c = var_a - var_b
var_d = 18
var_e = 7
var_f = var_d - var_e
var_g = var_c - var_f
print(int(var_g))