4

2

3

7

2

6

0

0

1

0

0

0

1

1

2

4

1

2

0

0

2

0

0

0

0

0

2

0

0

1

0

0

1

0

1

1

1

1

1

7

0

1

6

0

2

3

0

0

1

0

0

2

1

3

3

2

2

5

0

0