#include <iostream>
#include<algorithm>
using namespace std;
int a[10001]= {};
int main() {
	int n,k,abc=1;
	cin >> n >> k;
	for(int i =1; i<=n; i++) {
		cin >> a[i];
	}
	sort(a+1,a+n+1);
	unique(a+1,a+n-1);
	if(k>n) cout << "NO RESULT";
	else cout << a[k];
	return 0;
}