program tambah;
var
 baris,kolom,n : integer;
begin
  readln(n);
    for baris := 1 to n do
      begin
        for kolom := 1 to n do
          begin
            if (baris = n div 2 +1) or (kolom = n div 2 +1) then
              write('*')
            else
              write(' ');
          end;
        writeln;
      end;
    readln;
end.