min_vertex 0 2
min_vertex 1 3
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min_vertex 3 4
min_vertex 4 5
min_vertex 5 0
min_vertex 6 0
min_vertex 7 8
min_vertex 8 3
min_vertex 9 7
min_vertex 10 6
min_vertex 11 3
min_vertex 12 6
min_vertex 13 6
min_vertex 14 0
min_vertex 15 2
min_vertex 16 4
min_vertex 17 0
min_vertex 18 7
min_vertex 19 7
#
max_vertex 0 1
max_vertex 1 2
max_vertex 2 4
max_vertex 3 1
max_vertex 4 1
max_vertex 5 5
max_vertex 6 8
max_vertex 7 1
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max_vertex 11 6
max_vertex 12 2
max_vertex 13 0
max_vertex 14 5
max_vertex 15 5
max_vertex 16 8
max_vertex 17 8
max_vertex 18 0
max_vertex 19 4


