0 1

0 0

3 1

3 1

2 2

3 0

1 0

2 1

3 1

3 1

1 0

0 1

2 2

0 1

2 2

1 0

1 2

2 0

0 0

1 1

2 1

0 0

1 0

1 1

2 0

0 0

1 1

2 0

1 0

1 1