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

ifstream read("sdo.in");

ofstream print("sdo.out");


int n, x, k;

vector<int> a;

int main(void) {
	read >> n >> k;
	
	for(int i = 1; i <= n; ++i) {
		read >> x;
		a.push_back(x);
	}
	
	make_heap(a.begin(), a.end());
	
	sort_heap(a.begin(), a.end());
	
/*	for(int i = 0; i < n; ++i) {
		cout << a[i] << " ";
	}*/
	
	print << a[k - 1];
}