????? ???, ???? ?????, ??? ?????. ???? ??? ?? ?????? ????????. ??????? {???|??|??|?????|????]???? ????????. ????, ???????? ?????? ?????? ?? ????? ?????? ???? ????? ????? ????? ??????? ??????, ?????? ????? ?? ?????, ???? ? ???? ?? ?????. ???? ????? ???? ????? ??????, ??????, ?? ??????, ?????? ?????? ??? ?????. ????? ??? ???? ????? ?????? ?