99.1
2    24 25 23   0 0 0   0 0 0
2    0 0 22   0 0 0   0 0 0
2    20 21 19   0 0 0   0 0 0
2    18 0 0   28 27 0   0 0 0
2    17 0 16   0 0 0   0 0 0
2    14 15 13   0 0 0   0 0 0
2    11 12 10   0 0 0   0 0 0
2    8 9 0   31 32 0   0 0 0
2    6 7 0   30 33 0   0 0 0
2    0 0 0   29 34 0   0 0 0
2    0 0 0   26 35 0   0 0 0
2    4 5 3   0 0 0   0 0 0
2    1 2 0   37 36 0   0 0 0