2 5 5 13 16 15 19 25 20 2
3 8 9 18 21 24 27 33 33 3
4 9 11 21 28 30 40 40 50 4
4 8 8 17 23 -8 -9 -9 -10 5
4 4 4 9 15 -18 -21 -23 -28 7
