1

(a)  

7

(a)  

4

(a)  

5

(a)  

2

(a)  

15

(a)  

3

(a)  

0

(a)  

9

(a)  

6

(a)  

8

(a)  

11

(a)  

14

(a)  

20

(a)  

30

(a)  

24

(a)  

32

(a)  

17

(a)  

26

(a)  

19

(a)