#include <iostream>
using namespace std;
const int N = 100010;
int a[N];
void quick_sort(int a[], int l, int r)
{
if (l >= r) return;
int i = l - 1, j = r + 1, x = a[l + r >> 1];
while (i < j)
{
do i ++ ; while (a[i] < x);
do j -- ; while (a[j] > x);
if (i < j) swap (a[i], a[j]);
}
quick_sort(a, l, j), quick_sort(a, j + 1, r);
}
int main()
{
int m, n;
cin >> m >> n;
for (int i = 0; i < m; i ++ ) cin >> a[i];
quick_sort(a, 0, m - 1);
for (int i = 0; i < m; i ++ );
cout << a[n - 1];
return 0;
}