5 3

0 0

4 3

1 2

2 4

3 1

0 0

0 3

1 1

5 1

0 1

0 2

3 2

4 2

1 0

1 3

3 1

1 0

2 1

1 1

1 1

2 0

1 1

3 2

2 0

1 0

0 3

1 1

1 2

1 4