var v:array [1..3000000] of longint;
    buf1:array[1.. 1 shl 17] of char;
    i, j, n, k, rez, aux, q:longint;
    f, g:text;

procedure qsort (st, dr:longint);
var s, d, p:longint;
  begin
  p:=v[random(dr-st)+st];
  s:=st; d:=dr;
  while s < d do
    begin
    while v[s]<p do s:= s+1;
    while v[d]>p do d:= d-1;
    if s<= d then
      begin
      aux:= v[s]; v[s]:=v[d]; v[d]:=aux;
      s:=s+1; d:=d-1;
      end;
    end;
  if k < s then begin if st<d then qsort (st, d); end
           else begin if s< dr then qsort (s, dr); end;
  end;

begin
assign (f, 'sdo.in'); settextbuf (f, buf1); reset (f);
assign (g, 'sdo.out'); rewrite (g);
randomize;

read (f, n, k);
for i := 1 to n do read (f, v[i]);

qsort (1, n);
q:=v[k];
writeln (g, q);
close (f); close (g);
end.