#include <cstdio>

using namespace std;

int v[3000000],n,k,gasit;

void dvd(int st,int dr,int &m)
{
    int i=st,j=dr,pi=0,pj=1;
    while(i<j)
    {
        if(v[i]>v[j])
        {
            v[i]=v[i]^v[j]^(v[j]=v[i]);
            pi=pi^pj^(pj=pi);
        }
        i+=pi;
        j-=pj;
    }
    m=i;
}

void quick(int st,int dr)
{
    int m;
    if((st<dr)&&(!gasit))
    {
        dvd(st,dr,m);
        if(m>k)
            quick(st,m-1);
        else
            if(m<k)
                quick(m+1,dr);
            else
                gasit=v[m];
    }
    else
        if(st==k)
            gasit=v[st];
}

int main()
{
    FILE *f,*g;
    int i,x;
    f=fopen("sdo.in","r");
    fscanf(f,"%d %d",&n,&k);
    for(i=1; i<=n; i++)
        fscanf(f,"%d", &v[i]);
    fclose(f);

    gasit=0;
    quick(1,n);

    g=fopen("sdo.out","w");
    fprintf(g,"%d",gasit);
    fclose(g);
    return 0;
}