15 balls of different weights are placed in a row in order of weight from the lightest. The ball (a) is placed eighth from the front. If you place the balls again, in a row in order of weight from the heaviest, at what position will the ball (A) be placed from the front?
15 8 [OP_SUB] 1 [OP_ADD]
var_a = 15
var_b = 8
var_c = var_a - var_b
var_d = 1
var_e = var_c + var_d
print(int(var_e))