program paduri;
type lista=^celula;
       celula=record
         info:longint;
         pred:lista;
       end;

var lda:array[1..100000] of lista;
    viz,tata:array[1..100000] of longint;
    a,b,n,i,nr,k,j,m,ok:longint;
    r : lista;
    b1,b2 : array [0..1 shl 17] of char;

procedure aktualizare(nod : longint);
begin
     r:=lda[nod];
     tata[nod]:=a;
     while r<>nil do begin
                          aktualizare(r^.info);
                          r:=r^.pred;
                    end;
end;

procedure add(nod:longint; var p:lista);
   var r:lista;
    begin
         new(r);
         r^.info:=nod;
         r^.pred:=p;
         p:=r;
         aktualizare(nod);
    end;

begin
    assign(input,'disjoint.in'); settextbuf(input,b1); reset(input);
    assign(output,'disjoint.out'); settextbuf(output,b2); rewrite(output);
    readln(n,m);
    for i:=1 to n do tata[i]:=i;
    for j:=1 to m do begin
                          readln(nr,a,b);
              case nr of
                         1 : add(b,lda[a]);

                         2 : if tata[a]=tata[b] then writeln('DA')
                                                else writeln('NU');

                      end;
                end;
   close(input);
   close(output);

end.