5

-2

6

3

-8

9

(a)  

3

2

8

6

4

-5

(a)  

8

4

9

-5

2

7

(a)  

4

7

-6

9

8

-3

(a)  

26

8

35

-4

(a)  

5

37

-9

41

(a)  

39

2

86

9

(a)  

7

45

-2

93

(a)  

62

3

48

-9

(a)  

9

4

-3

8

2

-6

(a)  

5

3

8

7

4

2

(a)  

8

6

-9

3

7

-4

(a)  

6

9

-7

5

4

-3

(a)  

7

-4

2

5

9

8

(a)  

63

9

47

-2

(a)  

7

85

-9

36

(a)  

72

4

59

-1

(a)  

7

95

4

-12

(a)  

48

2

76

3

(a)