You want to divide a number by 4. If the answer when adding 42 incorrectly is 50, what is the correct calculation result?
50 42 [OP_SUB] 4 [OP_DIV]
var_a = 50
var_b = 42
var_c = var_a - var_b
var_d = 4
var_e = var_c / var_d
print(int(var_e))