3
0 0 1 0 -1 0 0
0 -1 0 1 0 0 0
1 0 0 0 0 1 0
0
4
0 0 1 -1 1 0 0
-1 1 0 -1 0 0 0
-1 0 0 -1 -1 0 0
-1 -1 0 0 0 1 0
0
# BEGIN ARRANGEMENT
# number_of_vertices
6
# number_of_edges
7
# number_of_faces
3
# BEGIN VERTICES
0 4 1 -1 0 0
8
4 4 1 -1 -1 0
8
4 3 1 0 0 1
4
4 4 1 0 -1 0
18
4 4 1 1 0 0
17
4 4 1 -1 1 0
9
# END VERTICES
# BEGIN EDGES
1 0 1 1 -1 0 0 -1 -1 0 0
7
7
2 1 1 1 -1 -1 0 0 0 1 0
7
7
3 2 0 1 0 0 1 0 -1 0 0
16
16
4 3 1 1 0 -1 0 1 0 0 0
16
16
2 4 1 1 1 0 0 0 0 1 0
16
16
5 2 0 1 0 0 1 -1 1 0 0
7
7
5 0 0 1 -1 1 0 -1 0 0 0
7
7
# END EDGES
# BEGIN FACES
# BEGIN FACE
0 1 
# number_of_outer_ccbs
0
# number_of_inner_ccbs
1
# halfedges_on_inner_ccb
4
1 3 11 12 
# number_of_isolated_vertices
0
10
# END FACE
# BEGIN FACE
0 1 
# number_of_outer_ccbs
1
# halfedges_on_outer_ccb
3
9 5 7 
# number_of_inner_ccbs
0
# number_of_isolated_vertices
0
22
# END FACE
# BEGIN FACE
0 1 
# number_of_outer_ccbs
1
# halfedges_on_outer_ccb
7
13 10 8 6 4 2 0 
# number_of_inner_ccbs
0
# number_of_isolated_vertices
0
19
# END FACE
# END FACES
# END ARRANGEMENT
