???? ?? ?? ?? 197???? ??? ???? 7? ?? 6.1? ??? ??, ?? ???? ???? ??? ??.

????? ??, ??? ????? ???? ??? ???? 7? 4? 54? 59?(???? 7? 5? 54? 59?)? ???? ????? 579?????? ??.

??????? ?????? ??? ?? ??? ??? 6.3??? ????? 538.5?????? ??.

???????, ??? ????? ??? ??? ??? ??? ???? ??? ???? ????? ???? ???? ??.