There are 156 red marbles and 267 blue marbles. Of these, 115 fell off and broke. How many marbles are left?
156 267 [OP_ADD] 115 [OP_SUB]
var_a = 156
var_b = 267
var_c = var_a + var_b
var_d = 115
var_e = var_c - var_d
print(int(var_e))