??
2????????1????????????????????????,?????? ???????? ? 2?1?,??????????????????????????? ????? ??? 2?1?,???????????? ??? ? 2???1?,??????????? ? ????????????????????????? 2?1?,???????????????????? ???????? ???????? 2????????????????????1?,????????,??????? ? ? 2???1?,???????????????????? ??? ????? 2????????1?,????? ???????? ? 2?????1???,????? ????? ? 2???????????????????1???,???????????? ????? ????????????????? 2????????1?????????????????????,?????????????????????????????? ? ???????? ????????????????????????:?????????
?????????
?????(??)????:???????????????????????