50
11 17
-16 -1
4 -17
-16 9
-1 -17
-16 -11
19 11
-12 -13
13 0
14 -5
17 15
8 20
5 -16
-4 0
-18 17
14 -8
19 -19
-16 -14
-17 2
5 -4
13 9
8 17
-9 12
0 16
-10 -16
-13 -6
1 -5
7 14
2 -14
-9 -17
3 12
12 -7
7 1
-9 -16
-1 9
6 -16
-19 0
-9 -6
-2 0
11 19
-8 8
-9 18
20 13
-13 18
-11 1
1 -3
18 19
0 -7
4 4
1 19
