4 3

1 1

1 1

3 1

3 2

2 2

1 2

0 0

0 1

0 4

1 0

1 1

1 3

2 2

1 1

0 1

1 2

1 0

1 2

1 1

3 2

5 0

1 3

0 3

0 2

0 0

2 1

0 1

2 1

3 0

1 2

0 1

1 2

4 2

3 0

1 1

1 2

0 4

0 5

2 3

2 0

3 0

0 0