????:1?????????:?????????

2???????

3?????????

4???????????

5?????

12???4?????,??????????????????,??? ????? ? 12?4?????,??,????????????????? ???????????? ? 12??????????4?,?,???????????????? ??????????????? ? 12?????4????(?????????)??? ? ????? 12?4?,??(?????)? ????? ???????????? ????:?????????????