a,discrete(3)	b,discrete(3)	c,discrete(3)	d,discrete(3)	e,discrete(3)
0	1	X	1	2	1
1	1	X	1	1	0
2	0	X	2	0	2
3	1	X	0	1	0
4	2	X	1	1	0
5	2	X	1	2	1
6	2	X	1	1	0
7	2	X	0	2	1
8	2	X	1	1	0
9	1	X	0	1	0