20

1 1 

2 2 

3 3 

4 6 

5 7 

6 8 

7 4 

8 5 

9 6 

10 7 

11 8 

12 9 

13 10 

14 11 

15 12 

16 13 

17 14 

18 15 

19 16 

20 17 

21 18 

22 19 

23 20 

24 21 

25 22 

26 23 

27 24 

28 25 

29 26 

30 27 

31 28 

32 29 

33 30 

34 31 

35 32 

36 33 

37 34 

38 35 

39 36 

40 37 

41 38 

42 39 

43 40 

44 41 

45 42 

46 43 

47 44 

48 45 

49 46 

50 47 

51 48 

52 49 

53 50 

54 51 

55 52 

56 53 

57 54 

58 55 

59 56 

60 57 

61 58 

62 59 

63 60 

64 61 

65 62 

66 63 

67 64 

68 65 

69 66 

70 67 

71 68 

72 69 

73 70 

74 71 

75 72 

76 73 

77 74 

78 75 

79 76 

80 77 

81 78 

82 79 

83 80 

84 81 

85 82 

86 83 

87 84 

88 85 

89 86 

90 87 

91 88 

92 89 

93 90 

94 91 

95 92 

96 93 