20	1	1	18	0	20	0	19	19	18	0	0	
0	19	1	1	0	0	20	0	0	1	0	20	
0	0	17	0	0	0	0	1	1	0	0	0	
0	0	1	1	20	0	0	0	0	1	20	0	
