Seokgi bought bananas for 800 won and kiwis for 400 won, and he bought 18 bananas and kiwis in total. He used 2,800 won less than 4/5 of the 16,000 won he had. Find how much money it cost to buy bananas.
16000 4/5 [OP_MUL] 2800 [OP_SUB] 400 18 [OP_MUL] [OP_SUB] 800 400 [OP_SUB] [OP_DIV] 800 [OP_MUL]
var_a = 16000
var_b = 0.8
var_c = var_a * var_b
var_d = 2800
var_e = var_c - var_d
var_f = 400
var_g = 18
var_h = var_f * var_g
var_i = var_e - var_h
var_j = 800
var_k = 400
var_l = var_j - var_k
var_m = var_i / var_l
var_n = 800
var_o = var_m * var_n
print(int(var_o))