??? ???????? ???? ?????? ??????? ?????? ?? ???? {??????.???? ?? ?????? {???????{ ?? ?????? ? ???????? ??????? ?????? ??? ???? ?????? ?????? ????? ??? ??? ?????? ??????? ??? ????? ????????. ???? ??? ???????: * ?? ???? ??? 21 ?????. * ?????? ??? ????? ??????? ???? ????. * ?????? ???????? ??????. ?????? ???? ???? ?????? ?????? ????? ????? ?????