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