2 3

3 3

0 0

2 0

2 2

0 2

2 1

2 3

3 2

2 1

2 1

1 1

0 1

1 2

1 2

1 3

3 1

0 1

4 0

1 1

1 1

1 3

4 0

3 2

0 0

1 0

1 1

3 0