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? ??1
??? ? ???? ??? ????? ??? ??? ???? ??? ??? ???.
?? ?????? ??? A?(70?)? ???? ??? ??? ??? ?? ???? 26? ???.
A?? ?? 22? ?? ?? ??? ? ???? ???? ??? ???? ???? ? ??? ???.
?? ??? A?? ???? ??? ?? ??? ???? ??? ???? ???? ??? ?? ??? ??? ?????? ??? ??? ??? ????.
??? A?? ??? ??? ????? ??? ?? ??? ?? ???.
(??=??1)