#include<iostream>
#include<fstream>
#include<ctime>
#include<cstdlib>
using namespace std;
int n, v[3000000];
int pivot(int left, int right)
{
    int p1,p2,p3,p,mini,maxi;
    p1=v[left + rand() % (right-left+1)];
    p2=v[left + rand() % (right-left+1)];
    p3=v[left + rand() % (right-left+1)];
    srand(time(NULL));
    if(p1<=p2&&p1<=p3)
        mini=p1;
    if(p2<=p1&&p2<=p3)
        mini=p2;
    if(p3<=p1&&p3<=p2)
        mini=p3;
    if(p1>=p2&&p1>=p3)
        maxi=p1;
    if(p2>=p1&&p2>=p3)
        maxi=p2;
    if(p3>=p1&&p3>=p2)
        maxi=p3;
    p=p1+p2+p3-maxi-mini;
    return p;

}
void caut(int poz, int left, int right)
{
 int p=v[(left+right)/2], ok, tmp, i=left, j=right;
 if(left<right)
 {
    while(i<=j)
    {
        while(v[i]<p)
            i++;
        while(v[j]>p)
            j--;
        if(i<=j)
        {
            tmp=v[i];
            v[i]=v[j];
            v[j]=tmp;
            i++;
            j--;
        }
    }
    ok=1;

        if(left<=j)
        {
            caut(poz,left,j);
            ok=0;
        }
        if(i<right)
        {
            caut(poz-i-1,i,right);
            ok=0;
        }
            if(ok==1)
            cout<<v[poz];
}
}
int main()
{
    int k;
    ifstream f("sdo.in");
    ofstream g("sdo.out");
    f>>n>>k;
    for(int i=0;i<=n-1;i++)
        f>>v[i];
    caut(k+1,0,n-1);
}