4 3

0 1

0 2

3 1

0 2

4 0

1 2

1 0

2 4

0 1

8 0

1 0

1 0

2 2

0 1

0 1

2 1

4 1

2 3

2 4

1 4

2 1

0 3

2 0

3 1

0 3

0 0

1 2

1 4

1 0

1 0

0 3

1 0

1 1

2 1

1 4

3 1

2 3

1 3

2 0

0 0

3 0

0 1

3 1

2 2

1 2

1 0

0 2

2 0

3 1

0 3

1 0

0 1

0 2

1 2

2 1

0 4

2 2

0 0

0 1

1 2

0 0

1 1

1 0

1 3

0 2

2 4

1 0

2 0

0 1

0 1

1 0

3 4

2 1

0 3

1 1

2 1

1 3

0 4

1 0

1 1

1 2

3 0

2 0

0 2

0 3

0 1

1 3

4 1

1 0

0 0

1 2

2 0

1 1

2 0

0 2

1 1

2 0

2 1

1 1

3 2