#x0 x1 x2 y[A B C] 1 2 1 0 0 1 # C 1 3 2 0 0 1 1 3 4 0 0 1 1 5 5 0 1 0 # B 1 7 5 0 1 0 1 2 5 0 1 0 1 6 6 1 0 0 # A 1 7 7 1 0 0