#include <bits/stdc++.h>
using namespace std;
long long a[1005];
int main()
{
	long long n,k,i;
	bool m=0;
	cin>>n>>k;
	for(int i=0;i<=n-1;i++)
	{
		cin>>a[n];
	}
	sort(a,a+n);
	for(int i=0;i<=n-1;i++)
	{
		if((i==k-1)&&(a[i]!=a[i+1]))
		{
			cout<<a[i];
			m=1;
			break;
		}
		else if((a[i]==a[i+1])&&(i==k-1))
		{
			cout<<a[i+1];
			m=1;
			break;
		}
	}
	if(m==0)
	{
		cout<<"NO RESULT";
	}
}