4

0

1

2

0

0

0

0

2

0

1

0

1

0

0

1

2

0

1

0

2

0

1

0

7

0

3

1

0

0

0

0

17

0

8

1

4

0

2

0

0

0

0

0

2

0

1

0

0

0

0

0

2

0

1

0