0	2	2	0	20	0	20	0	0	0	0	16	
0	17	17	20	0	0	0	0	1	16	20	1	
0	0	0	0	0	20	0	0	0	1	0	2	
20	1	1	0	0	0	0	20	19	3	0	1	
