#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */  
    long n,k;
    cin >> n >>k;
    long num[n];
    for(long i=0;i<n;i++){
        cin >> num[i];
    }
    if(n==(2*k)+1)
        cout<<num[k];
    return 0;
}