#include <bits/stdc++.h>

using namespace std;

int v[500005], n, p;

void quick(int st, int dr)
{
    int l = st, r = dr, x, piv = st+rand()%(dr-st+1);
    swap(v[l], v[piv]);
    x = v[l];
    while(l < r){
        while(l < r && v[r] >= x)
            --r;
        v[l] = v[r];
        while(l < r && v[l] <= x)
            ++l;
        v[r] = v[l];
    }
    v[l] = x;
    if(l-1 > st && l-1 >= p)
        quick(st, l-1);
    if(l+1 < dr && l+1 <= p)
        quick(l+1, dr);
}

int main()
{
    ifstream fin ("sdo.in");
    ofstream fout ("sdo.out");
    fin >> n >> p;
    for (int i = 1; i <= n; ++i)
        fin >> v[i];
    srand(time(NULL));
    quick(1, n);
    fout << v[p] << "\n";
    return 0;
}