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