The average pocket money for A, B, C, and D is 2,300 won. The average pocket money of A and B is 3000 won, and the average pocket money of C and D is 2750 won. Also, the average pocket money of B and C is 2100 won, and the pocket money of A is 800 won more than that of B. How much is D's pocket money?
2750 2 [OP_MUL] 2100 2 [OP_MUL] 3000 2 [OP_MUL] 800 [OP_SUB] 2 [OP_DIV] [OP_SUB] [OP_SUB]
var_a = 2750
var_b = 2
var_c = var_a * var_b
var_d = 2100
var_e = 2
var_f = var_d * var_e
var_g = 3000
var_h = 2
var_i = var_g * var_h
var_j = 800
var_k = var_i - var_j
var_l = 2
var_m = var_k / var_l
var_n = var_f - var_m
var_o = var_c - var_n
print(int(var_o))