#include <bits/stdc++.h>
using namespace std;
int n,a[30001],i,j,k,ss;
double s;
bool zc(double s){
	int sh=s/1;
	if(sh==(int)s)return 1;
	return 0;
}
int main(){
	cin>>n>>k;
	for(i=1;i<=n;i++){
		cin>>s;
		if(zc(s))a[(int)s]++,j=s;
	}
	for(i=1;i<=j;i++){
		if(a[i])ss++;
		if(ss==k){
			cout<<i;return 0;
		}
	}
	cout<<"NO RESULT";
	return 0;
}