0 0
16
1 1
2 1
2 0
3 0
3 1
2 2
3 2
4 1
4 3
0 3
0 4
1 4
1 5
-1 5
-1 -1
1 -1
12.00000000000000000000

0 0
5
-1 -1
1 0
0 -1
2 -2
2 4
5.50000000000000000000

0 0
17
-1 -1
5 -1
1 0
1 1
2 2
2 1
3 1
3 3
4 4
4 3
5 3
5 5
0 5
0 6
6 6
6 7
-1 7
24.00000000000000000000

0 0
4
0 -1
1 0
0 1
-1 0
2.00000000000000000000

0 0
4
-1 2
-1 -1
1 0
3 -1
3.6666666666

0 0
3
-1 -1
1 -1
0 1
2.00000000000000000000

0 0
11
0 -1
3 0
2 2
1 1
2 3
0 4
0 3
-1 5
-2 3
0 2
-1 0
10.50000000000000000000