Program statistic;
var t,n,k,i,j:longint;
    a:array[1..300000] of longint;
    f,g:text;
begin
assign(f, 'sdo.in'); reset(f);
assign(g, 'sdo.out'); rewrite(g);
read(f,n);
readln(f,k);
for i:=1 to n do
 read(f, a[i]);
for i:=1 to n do
 for j:=1+i to n do
  if a[i]>a[j] then begin
    t:=a[i];
    a[i]:=a[i+1];
    a[i+1]:=t;
  end;
writeln(g,a[k]);
close(f); close(g);
end.