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