#include<iostream>
#include<fstream>
using namespace std;
unsigned long a[3000000];
int n,k,s;

void poz (int li,int ls,int &s,unsigned long a[3000000])
{
     int i=li,j=ls,c,i1=0,j1=-1;
     while (i<j)
     {
         if (a[i]>a[j])
         {
             c=a[j]; a[j]=a[i]; a[i]=c;
             c=i1; i1=-j1; j1=-c;
         }
        i+=i1;
        j+=j1;
     }
         s=i;
}

void quick (int li,int ls)
{
    if(li<ls)
    {
        poz(li,ls,s,a);
        if(s>k) quick(li,s-1);
        else if (s<k) quick(s+1,ls);
}
}
int main()
{
    int i;
    ifstream f("sdo.in");
    ofstream g("sdo.out");
f>>n>>k;
    for(i=1;i<=n;i++)
        f>>a[i];
    quick(1,n);
        g<<a[k];
        f.close();
        g.close();
}