X1 X2 X3 X4 X5 X6 Y
-1 -1 1 1 -1 1 2.1
1 -1 -1 1 1 1 0.45
-1 -1 -1 -1 1 -1 3.55
1 -1 1 -1 -1 -1 3.95
-1 1 -1 1 -1 -1 2.95
1 1 1 1 1 -1 2.45
-1 1 1 -1 1 1 1.55
1 1 -1 -1 -1 1 3.3