make_x_monotone 0 1 1 0
make_x_monotone 1 2 1 1 1 2
make_x_monotone 1 2 1 3 1 4
make_x_monotone 2 2 1 5 1 6
make_x_monotone 2 2 1 7 1 8
make_x_monotone 3 2 1 9 1 10
make_x_monotone 3 2 1 11 1 12
make_x_monotone 4 1 1 1
make_x_monotone 5 1 1 2
make_x_monotone 6 1 1 3
make_x_monotone 7 1 1 4
make_x_monotone 8 1 1 5
make_x_monotone 9 1 1 6
make_x_monotone 10 1 1 7
make_x_monotone 11 1 1 8
make_x_monotone 12 1 1 9
make_x_monotone 13 1 1 10
make_x_monotone 14 1 1 11
make_x_monotone 15 1 1 12
make_x_monotone 16 1 1 13
make_x_monotone 17 1 1 14
make_x_monotone 18 2 1 15 1 16
make_x_monotone 19 2 1 17 1 18
make_x_monotone 20 2 1 19 1 20
make_x_monotone 21 2 1 21 1 22
#
make_x_monotone 22 2 1 23 1 24
make_x_monotone 23 2 1 25 1 26
make_x_monotone 24 2 1 27 1 28
make_x_monotone 25 2 1 29 1 30
make_x_monotone 26 2 1 31 1 32
make_x_monotone 27 2 1 33 1 34
make_x_monotone 28 2 1 35 1 36
make_x_monotone 29 2 1 37 1 38
# the same arcs in different order
make_x_monotone 22 2 1 40 1 39
make_x_monotone 23 2 1 42 1 41
make_x_monotone 24 2 1 44 1 43
make_x_monotone 25 2 1 46 1 45
make_x_monotone 26 2 1 48 1 47
make_x_monotone 27 2 1 50 1 49
make_x_monotone 28 2 1 52 1 51
make_x_monotone 29 2 1 54 1 53
#
#
make_x_monotone 30 2 1 55 1 56
make_x_monotone 31 2 1 57 1 58
make_x_monotone 32 2 1 59 1 60
make_x_monotone 33 2 1 61 1 62
# the same arcs in different order
make_x_monotone 30 2 1 64 1 63
make_x_monotone 31 2 1 66 1 65
make_x_monotone 32 2 1 68 1 67
make_x_monotone 33 2 1 70 1 69
