0

1

2

0

0

2

0

1

1

0

1

4

0

0

1

0

0

0

0

1

2

0

1

2

0

1

1

0

0

0

0

0

0

0

0

1

0

2

3

0

1

1

0

0

0

0

0

1

0

1

2

0

1

2

0

3

4

0

1

4