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#include <fstream>
#include <cstdlib>
#include <climits>
using namespace std;
ifstream f("sdo.in");
ofstream g("sdo.out");
int v[3000001],k,n;
void swap(int *a,int *b)
{
int t=*a;
*a=*b;
*b=t;
}
int partition(int v[],int q,int w)
{
int x=v[w];
int i=q;
for(int j=q; j<=w-1; j++)
{
if(v[j]<=x)
{
swap(v[i],v[j]);
i++;
}
}
swap(v[i],v[w]);
return i;
}
int randompartition(int v[],int q,int w)
{
int n=w-q+1;
int pivot=rand()%n;
swap(v[q+pivot],v[w]);
return partition (v,q,w);
}
int kth(int v[],int q,int w,int k)
{
int pos=randompartition(v,q,w);
if(pos-q==k-1)
return v[pos];
if(pos-q>k-1)
return kth(v,q,pos-1,k);
return kth(v,pos+1,w,k-pos+q-1);
}
int main()
{
f>>n>>k;
for(int i=0; i<=n-1; i++)
f>>v[i];
g<<kth(v,0,n-1,k);
return 0;
}