Run	X1	X2	X3	X1X2	X1X3	X2X3	X4=X1X2X3	Y
1	-1	-1	-1	1	1	1	-1	21
2	1	-1	-1	-1	-1	1	1	23
3	-1	1	-1	-1	1	-1	1	27
4	1	1	-1	1	-1	-1	-1	24
5	-1	-1	1	1	-1	-1	1	23
6	1	-1	1	-1	1	-1	-1	26
7	-1	1	1	-1	-1	1	-1	33
8	1	1	1	1	1	1	1	37