The number of flowers planted in each column is the same. When a rose is planted in the 9th column from the left, the 7th row from the front, the 16th row from the back, and the 13th column from the right, how many flowers are planted?
7 16 [OP_ADD] 1 [OP_SUB] 9 13 [OP_ADD] 1 [OP_SUB] [OP_MUL]
var_a = 7
var_b = 16
var_c = var_a + var_b
var_d = 1
var_e = var_c - var_d
var_f = 9
var_g = 13
var_h = var_f + var_g
var_i = 1
var_j = var_h - var_i
var_k = var_e * var_j
print(int(var_k))