1. 4, .
2. +2
3. .
4. .
5. .
6. 70. 46*27
7. .
8. 2 .
9. .
10. 10
11. .
12. , .
" ": 1 - 2 - 3 - "" " " 4 - - " " 5 - . 6 - ... 10 - " " 11 - - " 12 - " "