1	0	0	0	0	0	a
0	1	1	0	0	0	b
0	1	0	1	0	1	c
1	1	1	1	1	0	a
1	1	0	0	1	1	b
1	1	1	0	0	0	c
0	1	1	1	0	0	a
1	0	0	0	1	1	b