1. 1
2
3
1
2
1
2
1 2
3

2. 1 2
1
2
1
1

3. 1 2
3
f
1
2
1 2
3
4
1 2

4. 2
1
1
2
1
2
3
1 2

5. 11
2
3
1
1

6. 1 2 1
2
1
2
1

7. 1
2
3
1 2
3
3
1
2
3
1
2

8. 1
1
1 2
1
2

9. 1
2
1
2
1
2
3
1 2
3

10. 1
2
1
2
1
1

11. 1
2
1
2
1
1

12. 1
2
3
4
1
2
3
4
1 2
1 2

13. 1
2
3
1
2
3
1 2
3
1 2