2 0

2 1

0 1

1 2

0 0

0 1

1 0

1 1

1 0

0 0

2 2

1 1

0 1

0 1

4 2

0 1

1 0

1 2

1 1

1 0

1 0

1 1

0 0

2 2

1 0

0 0

1 0

2 0

1 1

1 0

0 3

2 3

1 0

0 2