R / r ? ??? ????? ??? ?????? ??? ???
?≪R≫ ??? ? ???-??? ???? ≪ ?? ≫ ??? ?? ?????? ??? ???? ??? ??? ??? ???? ??? ????? ???? ?????? ???? ??? ??? ? ??? ( ???? ) ??? ???? ???? ? ??? ????? " ? " (Ρ ρ) ????
?400 ????. ??? ??? ?????? ????? ??? ????? ????? ???? ????? ?? ???? ????? ?? ??? ??? ≪R≫ ??? ???? ????? ????? ??? ?50 ??. ????? ?/?/ ??? ????? ≪??≫ ?? ≪P≫ (???? /?/ ?????) ?????
? ??? ???? ??? ≪?≫ (≪ ??? ≫) ???? ??? ????-???? ≪??≫ ?? ??? ???? 'R' ??? ??? ?????