"简简单单"

#include<bits/stdc++.h>
using namespace std;
int n,k,a[5000005],sum=-1;
int main(){
    cin>>n>>k;
    for(int i=1;i<=n;i++){
        cin>>a[i];
    }
    sort(a+1,a+n+1);
    cout<<a[k+1];
    return 0;
}