#include <iostream>
#include <fstream>
#include <algorithm>
int N,K,a[3000001];
using namespace std;
ifstream f("sdo.in");
ofstream g("sdo.out");
bool cmp(const int &x1,const int &x2)
{
    return (x1<x2);
}
int main()
{
    f>>N>>K;
    for(int i=1;i<=N;i++)
        f>>a[i];
    random_shuffle(a+1,a+N+1);
    nth_element(a+1,a+K,a+N+1,cmp);
    g<<a[K];

    return 0;
}