program hjk;
var f,g:text;
a:array[1..3000000] of longint;
i,k,x,n,aux,j:longint;
begin
assign(f,'sdo.in');
reset(f);
assign(g,'sdo.out');
rewrite(g);
read(f,n,k);
for i:=1 to n do begin
read(f,x);
a[i]:=x;
end;
for i:=1 to n-1 do begin
for j:=i+1 to n do begin
if a[i]>a[j] then begin aux:=a[i];
                        a[i]:=a[j];
                        a[j]:=aux;
                  end;
end;
end;
write(g,a[k]);
close(f);close(g);
end.