180423_11004_K번째 수

	//https://www.acmicpc.net/problem/11004 #include <iostream>
	#include <stdio.h>
	#include <algorithm>
	#include <vector>
	using namespace std;
	int main(){
	int n, k;
	vector<int> v;
	scanf("%d %d", &n, &k);
	k--;
	for(int i=0; i<n; i++) {
	int a;
	scanf("%d", &a);
	v.push_back(a);
	}
	nth_element(v.begin(), v.begin()+k, v.end());
	cout << v[k];
	return 0;
	}