#include <fstream>

using namespace std;

ifstream fin ("sdo.in");
ofstream fout("sdo.out");

#define MAX_N 3000005
#define INF 0x3f3f3f3f

int N, K, A[MAX_N];

void citire()
{
	fin >> N >> K;

	for(int i = 1; i <= N; ++i)
		fin >> A[i];
}

void solve()
{
	int poz, val;

	for(int k = 1; k <= K; ++k)
	{
		val = INF;

		for(int i = 1; i <= N; ++i)
			if(A[i] < val)
				val = A[i],
				poz = i;

		A[poz] = INF;
	}

	fout << val << "\n";
}

int main()
{
	citire();
	solve();
}