#include<fstream>
#include<vector>
#include<algorithm>
using namespace std;
vector<long long int>v;
long long int k,n,i,x;
ifstream fi("sdo.in");
ofstream fo("sdo.out");
int main()
{
fi>>n>>k;
for(i=0;i<n;i++)
	{fi>>x;v.push_back(x);}
 make_heap(v.begin(),v.end());
 sort_heap(v.begin(),v.end());
  fo<<v[k-1];
 fi.close();
 fo.close();
}