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