2 0

0 1

1 1

2 1

2 0

3 3

2 0

1 3

2 0

1 2

1 0

2 0

2 2

2 0

2 0

0 1

0 3

0 1

1 0

4 0

2 1

1 1

0 2

0 2

2 1

0 0

1 1

2 3

1 0

1 0

1 2

4 3