4 0

1 1

5 0

0 2

1 2

2 3

1 0

1 2

2 1

3 2

0 1

2 3

4 0

2 1

1 1

3 0

3 4

2 2

3 1

0 2

0 1

1 1

0 1

2 0

2 3

3 1

1 0

2 1

1 2

2 2