You bought two roses at \3,000 each and some lilies at \2,800 each, paid \25,000 and got \2,200 in change. Work out how many lilies you bought.
25000 2200 [OP_SUB] 3000 2 [OP_MUL] [OP_SUB] 2800 [OP_DIV]
var_a = 25000
var_b = 2200
var_c = var_a - var_b
var_d = 3000
var_e = 2
var_f = var_d * var_e
var_g = var_c - var_f
var_h = 2800
var_i = var_g / var_h
print(int(var_i))