19, 20

22, 23

30

20

35, 40, 41

35, 36, 37, 38, 39, 41

40, 41

40

28

33, 34, 35, 37, 39

32, 33, 35, 36, 37

22, 23, 36, 37, 39

22, 23, 25, 30, 34

27, 28, 31, 33, 34

30, 32, 33, 34, 36, 37, 38, 39

39

36, 39

32

32, 34, 38, 40

35, 41