#include <bits/stdc++.h>

using namespace std;

int main() {
    int n,k;
    cin >> n;
    cin >> k;
    int l;
    long long q[n];
    for (int i = 0; i < n; i++){
        cin >> q[i];

    }
    sort(q ,q + n);
    for(int i = 0; i < n; i++){
        if(q[i] != 0){
        if(i < n - 1 && q[i] == q[i + 1]){
            q[i + 1] = 10000000000000000;
            i--;
        }
        }
    }

    sort(q ,q + n);
    
    cout << q[k - 1];
    

    if(k > n){
        cout << "NO RESULT";
    }
    return 0;
}