#include <iostream>
#include <fstream>
#include <stdlib.h>

using namespace std;

ifstream in("sdo.in");
ofstream out("sdo.out");
const int NMAX = 3000001;
int *A;
int n,k;

void quicksort(int x,int y)
{
    if(x<y)
    {
        int i=x,j=y;
        swap(A[x],A[i+rand()%(j-i+1)]);
        int pivot = A[x];
        while(i<j)
        {
            if(A[i] > A[j])
            swap(A[i],A[j]);
            if(A[i]==pivot)
            j--;
            else
            i++;
        }
        int m = i;
        if(m > k)
        quicksort(x,m-1);
        else
        quicksort(m+1,y);
    }
}


int main()
{
    in>>n>>k;
    A = new int[n+1];
    for(int i=1;i<=n;i++)
        in>>A[i];
    in.close();
    quicksort(1,n);
    out<<A[k]<<"\n";
    delete[] A;
    return 0;
}