When you mistakenly add 2 to a certain number while you had to subtract 2, the result is 6. What is the value if you calculate correctly?
6 2 [OP_SUB] 2 [OP_SUB]
var_a = 6
var_b = 2
var_c = var_a - var_b
var_d = 2
var_e = var_c - var_d
print(int(var_e))