program kincirangin;
var
  x,y,n : integer;
begin
  readln(n);
  for y:=1 to n do
    begin
      for x:=1 to n do
        begin
          if ((x <= y) and (y <= n div 2+1))
          or ((x <= n-y+1) and (x >= n div 2+1))
          or ((x >= y) and (y >= n div 2+1))
          or ((x >= n-y+1) and (x <= n div 2+1)) then
            write('*')
          else
            write(' ');
        end;
      writeln;
    end;  
end.