by Elio
Valori Y 10 9 8 7 6 5 4 3 2 1 0 3 4 5 6 7 8 9 10 11 12 13
Valori Y 10 9 8 7 6 5 4 3 2 1 0 3 4 5 6 7 8 9 10 11 12 13 Less