??????????? ?? ????????? ??????? ?????????? ?????????? ??????? ???????? ?????????? ?????? ?????? ???????? ? ???? ⋅ ? ??????? ⋅ ? ???????? ⋅ ? ???? ⋅ ? ?????? ?????? ⋅ ??? ???? ⋅ ????-???? ⋅ ??????? ???? ⋅ ??????? ?