A	B	AB	C	AC	BC	ABC	R
1	1	1	1	1	1	1	5.12
1	1	1	2	2	2	2	5.50
1	2	2	1	1	2	2	5.85
1	2	2	2	2	1	1	5.78
2	1	2	1	2	1	2	5.09
2	1	2	2	1	2	1	4.87
2	2	1	1	2	2	1	5.98
2	2	1	2	1	1	2	5.00