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