#include<algorithm>
  #include<iostream>
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MaxN=5000005,MAX=1e7;
#define inf 0x7f7f7f7f
int sum[MAX];

int main()
{
	int n,k;
	cin>>n>>k;
	for(int i=1;i<=n;i++){
		cin>>sum[i];
	}
	sort(sum+1,sum+1+n,less<int>());
	cout<<sum[k+1]<<endl;
	return 0;
}```