1 - 6 exp 2 - 9 exp 3 - 12 exp 4 - 15 exp 5 - 18 exp 6 - 21 exp 7 - 24 exp 8 - 27 exp 9 - 30 exp 10 - 33 exp 11 - 36 exp 12 - 39 exp 13 - 42 exp 14 - 45 exp = 357 EXP