#include<iostream>
#include<cstdio>
using namespace std;
int n,k,i,j,c,M[100];
int main()
{
	freopen("sdo.in","r",stdin);
	freopen("sdo.out","w",stdout);
	cin>>n>>k;
	for(i=1;i<=n;i++)
		cin>>M[i];
	for(i=1;i<=n;i++)
		for(j=i+1;j<=n;j++)
		{
		if(M[i]>M[j])
		{
			c=M[i];
			M[i]=M[j];
			M[j]=c;
		}
	}
		cout<<M[k];
	return 0;
}