2
9
2	5	0	0	2	0	0	3
1	4	0	0	4	1	3	5
1	4	1	2	5	0	0	6
1	4	0	0	0	2	5	7
2	1	2	4	7	3	6	8
2	4	3	5	8	0	0	0
2	4	4	0	0	5	8	9
2	4	5	7	9	6	0	0
1	5	7	0	0	8	0	0