program metszetkepzes1;
const max_hossz=10; n=8; m=6;
type tomb = array [1..max_hossz] of integer;
var i,j, k, l : integer;
    a,b,c: tomb;
procedure beolvas(var t : tomb; hossz: byte; nev: char );
var i: integer;
begin
  writeln('Kerem a(z) "', nev, '" tomb elemeit: ');
  for i:=1 to hossz do
  begin
    write(nev, '[',i,'] = '); readln(t[i]);
  end;
end;
procedure kiir(t : tomb; hossz: byte);
var i: integer;
begin
  for i:=1 to hossz do
    write(t[i]:3);
  writeln;
end;
begin //foprogram
  beolvas(a, n, 'a');
  beolvas(b, m, 'b');
  kiir(a,n);
  kiir(b,m);
  k:=0;
  for i:=1 to n do
  begin
    j:=1;
    while (j<=m) and (a[i]<>b[j]) do
      j := j + 1;
    if j<=m then
    begin
      l:=1;
      while (l<=k) and (c[l]<>a[i]) do
        l := l + 1;
      if l>k then
      begin
        k:=k+1;
        c[k]:=a[i];
      end;
    end;
  end;
  kiir(c, k);
  readln;
end.