var
  i: Integer;
  m: String;
begin
  ReadLn(i);
  case i of
     1: m := 'Jan';
     2: m := 'Feb';
     3: m := 'Mar';
     4: m := 'Apr';
     5: m := 'May';
     6: m := 'Jun';
     7: m := 'Jul';
     8: m := 'Aug';
     9: m := 'Sep';
    10: m := 'Oct';
    11: m := 'Nov';
    12: m := 'Dec';
  end;
  WriteLn(m);
end.