0	1	2	3	4	5	6	7
0, 0	0, 1	0, 2	0, 3	0, 4	0, 5	0, 6	0, 7
1, 0	1, 1	1, 2	1, 3	1, 4	1, 5	1, 6	1, 7
2, 0	2, 1	2, 2	2, 3	2, 4	2, 5	2, 6	2, 7
3, 0	3, 1	3, 2	3, 3	3, 4	3, 5	3, 6	3, 7
4, 0	4, 1	4, 2	4, 3	4, 4	4, 5	4, 6	4, 7
5, 0	5, 1	5, 2	5, 3	5, 4	5, 5	5, 6	5, 7
6, 0	6, 1	6, 2	6, 3	6, 4	6, 5	6, 6	6, 7