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#include <iostream>
#include <fstream>
#include <random>
#include <ctime>
#include <cstdlib>
using namespace std;
ifstream fin("sdo.in");
ofstream fout("sdo.out");
int a[3000010];
int k;
int part(int st,int dr,int indexPiv)
{
int pivotVal = a[indexPiv];
swap(a[dr],a[indexPiv]);
int pIndex=st;
for(int i = st;i<dr;i++)
if(a[i]<pivotVal)
swap(a[i],a[pIndex++]);
swap(a[dr],a[pIndex]);
return pIndex;
}
int quicksort(int st,int dr)
{
if(st<=dr)
{
int randomIndex = st + rand()%(dr-st+1);
int pIndex = part(st,dr,randomIndex);
if(pIndex==k)
return a[pIndex];
else if(pIndex>k)
return quicksort(st,pIndex-1);
else
return quicksort(pIndex+1,dr);
}
}
int main()
{
int n;
fin>>n>>k;
for(int i = 1;i<=n;i++)
fin>>a[i];
fout<<quicksort(1,n)<<'\n';
return 0;
}