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