60 centimeters (cm) long wire was used to make a square with a side of 9 centimeters (cm). How many centimeters (cm) is the length of the remaining wire?
60 9 4 [OP_MUL] [OP_SUB]
var_a = 60
var_b = 9
var_c = 4
var_d = var_b * var_c
var_e = var_a - var_d
print(int(var_e))