0

1

2

0

2

4

0

4

4

0

0

1

0

2

2

0

3

4

0

3

4

0

0

1

0

0

0

0

1

1

0

2

4

0

0

0

0

1

4

0

0

0

0

1

3

0

1

1

0

0

0

0

0

1

0

2

5

0

1

4