#include<bits/stdc++.h>
using namespace std;
int m, n, v[2000010];
int main() {
	cin >> n >> m;
	for (int i = 1; i <= n; i++) {
		cin >> v[i];
	}
	sort(v + 1, v + 1 + n);
	cout << v[m + 1] << ' ';
}

sort绝对TLE