13
0	1	0	0	3
0	1	0	0	4
0	1	1	0	7
0	1	1	0	8
0	1	2	0	3
0	1	2	0	4
0	3	0	0	0
0	3	0	0	1
0	3	0	0	2
0	3	0	0	3
0	3	0	0	4
0	3	0	0	5
0	3	0	0	6
0	3	0	0	7
0	3	0	0	8
0	8	2	1	8
0	8	5	0	0
0	9	5	0	9
0	12	0	1	0
0	12	0	1	1
1	1	2	1	8
1	2	2	0	8
1	8	4	0	2
1	9	2	0	5
1	10	0	1	2
1	10	1	1	7