0	1
0	0
1	4
1	0
1	4
1	0
1	0
0	0
0	4
0	0
1	0
1	4
0	4
0	0
1	1
0	0
0	4
0	0
0	2
0	0
0	4
0	4
0	0
0	0
1	4
1	0
1	0
0	2
0	0
0	0
0	0
1	4
1	4
