{0,1,2} {0,1,2}

0 1
0 0 -> 0
0 1 -> 1
0 2 -> 2

1 0
1 0 -> 0
1 1 -> 1
1 2 -> 2

2 0
2 0 -> 0
2 1 -> 1
2 2 -> 2



