#
# point id: 0
-2/1 4/1
# point id: 1
-2/1 2/1
# point id: 2
-2/1 1/1
# Point id: 3
4/1 4/1
# point id: 4
3/1 1/1
# point id: 5
0/1 1/1
# point id: 6
-10/1 6/1
# point id: 7 (origin)
0/1 0/1
# point id: 8
-1/1 0/1
# point id: 9
5/1 0/1
# point id: 10
9/1 0/1
# point id: 11
15/1 0/1
# point id: 12
-11/1 5/1
# point id: 13

# point id: 14

# point id: 15

# point id: 16

# point id: 17