#include<iostream>
using namespace std;
int main(void) {
	int n, k;
	cin >> n >> k;
	int is, islist[30000] = {};
	for (int i = 1; i <= n; i++) {
		cin >> is;
		islist[is]++;
	}
	int ass = 0;
	for (int i = 1; i <= 30000; i++) {
		if (islist[i] >= 1) ass++;
		if (ass == k) { cout << i; return 0; }
	}
	cout << "NO RESULT";
}
//感谢Ackoter的灵感