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

2????????

3?????????

4?????????

5?????????????

12?2?,?,???? ?? ? 12?????2?????????????????????????,???? ? ?????????????????????? 12??2?????,?????????????????? ????? ? 12?2?,??????????? ? ????????? 12???????????????????2?,??? ????? ????????????????????????? 12??2?,?????,??? ??????????????????? ????? ????:???