"x" "y"
1 2
2 2
1 2
1 1
2 2
2 1
2 1
1 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
1 1
1 2
1 2
2 1
1 2
2 2
1 1
2 1
2 1