0	1	2	3	4	5
		*	*	*	*	*	*

---

0
		0	1	2	3	4	5
0	*
1
2
3
4
5
		0	1	2	3	4	5
1	0
1	1		*
1	2
1	3
1	4
1	5
		0	1	2	3	4	5
2	0
2	1
2	2			*
2	3
2	4
2	5
		0	1	2	3	4	5
3	0
3	1
3	2
3	3				*
3	4
3	5
		0	1	2	3	4	5
4	0
4	1
4	2
4	3
4	4					*
4	5
		0	1	2	3	4	5
5	0
5	1
5	2
5	3
5	4
5	5						*