?? ????? ?????? ???????? ?????? ?? ????????? ???????? ????hopping ????????. ???? ??????? {?????? ?????? ???? ?? ???????? ????????? ???? ???? ????? ?????? ?????? ????. ????? ?????? ?????? ???????? ????????, ?????? ???? ??????? ??? ??????? ????. ?????? ????? ?????? ??????? ????? ????? ?????? ?????????? {????? ????{ | ????? ???? ????