Course	Room	Teacher	Time	Students
1	1	2	2	2 3 4 7 8 9 10
2	3	2	4	4 9
3	2	3	4	3 6 7
4	1	1	1	1 2 4 5 6 7 9
5	2	1	3	1 7 10
6	2	3	1	3 8
7	1	4	4	1 2 5 8 10
8	1	4	3	2 3 4 5 6 9