0	1	2	0	0	0	0	0	1	19	1	0	
18	1	0	19	0	20	20	0	0	0	0	1	
1	2	0	0	20	0	0	0	0	1	17	0	
1	16	18	1	0	0	0	20	19	0	2	19	
