6

0	40	64	36	22	60
40	0	41	22	36	72
64	41	0	28	44	53
36	22	28	0	20	50
22	36	44	20	0	41
60	72	53	50	41	0

0	1	1	2	0	0
1	0	0	0	0	2
1	0	0	0	0	1
2	0	0	0	3	0
0	0	0	3	0	0
0	2	1	0	0	0