2

1

2-1

4

3

4-3

6

5

6-5

8

7

8-7

10

9

10-9

12

11

12-11

14

13

14-13

16

15

16-15

18

17

18-17

20

19

20-19

22

21

22-21

24

23

24-23

26

25

26-25

28

27

28-27

30

29

30-29

32

31

32-31

34

33

34-33

36

35

36-35

38

37

38-37

40

39

40-39

42

41

42-41

44

43

44-43

46

45

46-45

48

47

48-47

50

49

50-49

52

51

52-51

54

53

54-53

56

55

56-55

58

57

58-57

60

59

60-59

62

61

62-61

64

63

64-63

66

65

66-65

68

67

68-67

70

69

70-69

72

71

72-71

74

73

74-73

76

75

76-75

78

77

78-77

80

79

80-79