#include<cstdio>
#include<cstdlib>
#include<ctime>
using namespace std;
int v[3000001];
void swp(int i,int j)
{
    int aux=v[i];
    v[i]=v[j];
    v[j]=aux;
}
void merg(int st,int dr,int k)
{
    int piv=st+rand()%(dr-st+1);
    int i=st,j=dr,p=v[piv];
    int temp=piv;
    while(i<j)
    {
        while(v[i]<p)
            i++;
        while(v[j]>p)
            j--;
        if(i<j)
        {
            if(v[i]==p)
            {
                temp=j;
            }
            if(v[j]==p)
            {
                temp=i;
            }
            swp(i,j);
            i++;
            j--;
        }
    }
    if(temp<j)
        swp(temp,j);
    if(temp>i)
        swp(temp,i);
    if(i>k)
    {
        merg(st,i-1,k);
    }
    else
    {
        if(j<k)
        {
            merg(j+1,dr,k);
        }
    }
}
int main()
{
    freopen("sdo.in","r",stdin);
    freopen("sdo.out","w",stdout);
    srand(time(0));
    int n,k,i;
    scanf("%d%d",&n,&k);
    for(i=1;i<=n;i++)
    {
        scanf("%d",&v[i]);
    }
    v[n+1]=2000000000;
    merg(1,n,k);
    printf("%d",v[k]);
    return 0;
}