4	2
0	1
5	4
0	0
0	4
0	0
0	0
1	0
5	5
1	1
4	0
1	4
3	4
1	1
0	1
0	1
1	4
0	1
1	3
2	1
2	5
1	4
2	0
-1	1
3	4
-1	0
0	-1
0	2
1	1
0	1
-1	0
4	4
0	4
1	3
0	
0	
4	
2	
