math    english sex
2	2	0
1	3	1
4	3	1
1	1	0
1	2	1
4	4	1
3	3	1
3	4	0
1	1	0
1	1	0
4	2	1
4	4	0
2	2	0
4	3	1
2	3	1
4	4	0
1	1	0
4	3	1
4	4	1
1	3	0