10 5
	2	1	0	2	3
	5	8	3	0	1
	2	2	2	2	3
	1	1	2	4	3
	2	4	1	2	3
	0	0	7	7	0
	1	1	2	4	3
	5	8	3	0	1
	1	1	2	4	3
	0	0	7	7	0
