2

2

2

2 3

2

2

2

2 3

2 3

2

25 27 29

2 3

2

25 27 29

2 3

25 27 29

2 3

29

1/2 3/4

2 3

2

2

2

2 3

2

3

2

2

2

25 29

23

23 25

23 25

2

2