#include <fstream>
#include<ctime>
#include<cstdlib>
#include<algorithm>
using namespace std;
ifstream f("sdo.in");
ofstream g("sdo.out");
long k,n,v[3000001],i,j,piv,aux;
void qstat(long st, long dr)
{i=st;j=dr;
 piv=v[(st+dr)/2];
 while(i<=j)
   {while(v[i]<piv)
      i++;
    while(v[j]>piv)
      j--;
    if(i<=j)
      {aux=v[i];v[i]=v[j];v[j]=aux;i++;j--;}
   }
  if(j==k)
     g<<piv;
  else
     if(j<k)
       qstat(j+1,dr);
     else
       qstat(st,i-1);
 }
int main()
{f>>n>>k;
 for(i=1;i<=n;i++)
    f>>v[i];
 qstat(1,n);
 f.close();g.close();
 return 0;
}