????? 3 ????? ???? ??? ???? ?????? ?????. ??????? ????? ?? ????? 3 ?????? ?? ???????? ???? ?? ?????? ????? . ???? ??????? ?????? {???? ?????|?????? ?? ????? ,????? ???? ????, ?????? ? ?????? ?????????. ????? 3 ????? {??????? ??????|???? ????? ???? ????. ?????? {?????? ??????:???? ????, ?????, ??