1

2 3

1

x2

x2

x4

x4

x2x4

x4

3

x2

x2

x4

x4

x

1

6 7

2

544

x1

x1

x1

x1

6

x1

x1

x1

x1

A238

x1

x2

x2

x2

5

A238

x1

x2

x2

x2

7

1

10 11

3

98x2

x2

x4

x2

x2x2

x2

x4

A338

x1

x2x2

x1

x2x2

1

14 15

4

1312

x1

x1x1

x1x1

x1

x1x1

x1x1

1

18 19

5

1716

A238

A238

15 16

A338

1

22 23

6

2120x1

x1

x1

x1x1

x1

x1

x1

x1

x2

22

A238

A338

x1

x2

x1x1x4

17 19

20 22

1

26 27

7

2524x1

x1

x1

x1x1

A238

A338

x1

x2

x1x1x4

x1

x1

x1

x1

x1

x1

x1

x2

26 24 26

1

30 31

8

2928

x2

x1

x1x1

x2x2

x1x1

x1

x1

x1

x1

28 29

A338

1

34 35

9

3332x2

x1

x1

x4x4

x2

x2x2

x1

x1

x2x2

x2

x2

x1

x2

x4

A338

1

10

3736 38

A238

x2

x2x2x2

x2x2

31 35

40

11

39

x4

x4

43

12

41 42

A238

x2

x10

A238

x2

x10

39 40