#include <iostream>
#include <set>
using namespace std;
int main(){
	set<int>s;	
	int n,k,x;
	cin>>n>>k;
	for (int i=1;i<=n;i++){
		cin>>x;
		s.insert(x);
	}
	set<int>::iterator it=s.begin();
	for (int i=1;it!=s.end(),i<k;i++,it++);
	if (it==s.end())
	cout<<"NO RESULT";
	else
	cout<<*it;
	return 0;
}