????? ??????? ?? ?????? ?????? ????? ??? ??????? ??????? ????? ???? ???? ????? ????? ?? ??? ???????. ????? ???? ????? ??? ???? ???? ????? ?????? ???? ??????? ????? ???????? {??? ?????? ?? ????????? ??????? ??? ???? ??????. ?????? ??????? ??? ????? ????? ??????? ???leader ?? ???? ????? ???