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