The appeal must be heard upon printed copies of the case furnished by the respondent at the next law term. If the case is not argued, it must be decided upon the record, and if the respondent fails to enter an appeal with the printed copies of the case during the first 3 days of said law term, the counsel for the prosecution shall enter the appeal with an attested copy of the judgment and decree, whereupon the same must be affirmed by the law court.   [RR 2021, c. 1, Pt. B, §29 (COR).]