program olol;
 var
  i,j,n: integer;
 begin
  readln(n);
  for i:=1 to n+1 do
   begin
    for j:=1 to n-i+1 do
     write('  ');
    for j:=0 to i-1 do begin
     write(j); if i<>1 then write(' ');
    end;
    for j:=i-2 downto 0 do begin
     write(j); if j <>0 then write(' ');
    end;
    writeln;
   end;
  for i:=n downto 1 do
   begin
    for j:= 1 to n-i+1 do
     write('  ');
    for j:=0 to i-1 do begin
     write(j); if i<>1 then write(' ');
    end;
    for j:=i-2 downto 0 do begin
     write(j); if j <>0 then write(' ');
    end;
    writeln;
    end;
 end.