#include <vector>
#include <fstream>
#include <algorithm>
using namespace std;
vector <int> v;

ifstream f("sdo.in");
ofstream g("sdo.out");
int n,i,x,y;
int main()
{
    f>>n>>y;
    for (i=1;i<=n;i++){f>>x; v.push_back(x);}
    sort (v.begin(), v.end());
    g<<v[y];


}