The box contains 23 green and 23 purple marbles. If there are 7 more green marbles than purple marbles, how many green marbles are there?
23 7 [OP_SUB] 2 [OP_DIV]
var_a = 23
var_b = 7
var_c = var_a - var_b
var_d = 2
var_e = var_c / var_d
print(int(var_e))