Program PermutBack; Uses Crt;
var n:byte;
    st:array[1..10] of byte;
    F,G:text;
procedure Print;
var i:byte;
begin
 for i:=1 to n do write(G, st[i],' ');
 writeln(G);
end;
procedure Perm(k:byte);
var  i,j:byte; B:boolean;
 begin
  if k=n+1 then Print
   else
    for i:=1 to n do begin
    B:=True;
     for j:=1 to k-1 do
      if st[j]=i then B:=False;
     if B then
       begin
         st[k]:=i;
         Perm(k+1);
       end;
  end;
end;
Begin
assign(F, 'permutari.in');
reset(F);
assign(G, 'permutari.out');
rewrite(G);
 readln(F, n);
 Perm(1);
close(F);
close(G);
end.