"y"	"z"
1	1
0	8
1	6
0	1
0	1
2	5
0	3
1	0
1	0
1	4
2	4
1	0
0	0
0	1
1	2
1	1
0	4
1	0
1	4
1	0
1	3
0	0
0	1
0	1
1	0
1	1
2	3
0	2
1	4
2	6
2	6
1	0
1	1
0	1
2	8
1	3
1	3
0	5
1	0
5	5
0	2
3	3
0	1
1	0
1	0
0	0
0	3