4

1

2

0

0

0

1

1

1

2

0

0

2

0

2

0

0

1

3

1

2

7

0

0

3

0

1

3

0

1

3

0

0

2

1

1

7

2

2

2

0

0

5

1

2

3

0

0

3

1

1

5

2

4

3

0

1

1

0

2