Bomi bought candy for 350 won and chocolate for 500 won and paid 1,000 won. How much change should Bomi get?
1000 350 [OP_SUB] 500 [OP_SUB]
var_a = 1000
var_b = 350
var_c = var_a - var_b
var_d = 500
var_e = var_c - var_d
print(int(var_e))