#include <bits/stdc++.h>
using namespace std;

ifstream f("sdo.in");
ofstream g("sdo.out");

int n,k;
vector < int > v;
int x;

bool cmp(int a , int b) {
    return a <= b;
}

int main()
{
    f >> n >> k;
    v.push_back(0);
    for (int i=1;i<=n;i++) {
        f >> x;
        v.push_back(x);
    }
    nth_element(v.begin(),v.begin()+k,v.end(),cmp);
    g << v[k];
    return 0;
}