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