????? ??????? ???? ????????? ??? ???? ??????? ?????? ?? ???? ????. ??? ????? ?@???? ????? ??????? ???? ????? ?? ???????. ?? ???? ??????? ???? ?????????? ?????? ????? ??????? ???? ?itudinal. ????? ?????? : ???? ?????? ?????? ???? ????? ????? ?????? ?????? ?????? ?????? ??? {????. ???? ???? . ????? ????? ?????? ??? ????? ?? {??????? ???????.