#include <stdio.h>
int main()
{
    int N;
    scanf("%d", &N);
    if(N <= 0)
    {
        printf("Invalid Input");
        return 0;
    }
    int arr[N];
    for(int i = 0; i < N; i++)
    {
        scanf("%d", &arr[i]);
    }
    int k;
    scanf("%d", &k);
    if(k < i || k < N)
    {
        printf("Invalid Input");
        return 0;
    }
    for (int i = 0; i < N - 1; i++)
    {
       for ( int j = i + 1; j <N; j++)
       {
          if(arr[j] < arr[i])
           {
            int temp = arr[i];
             arr [i] = arr[j];
             arr [j] = temp;
            }
        }
    }
    printf(" %d ", arr[k - 1]);
    return 0;
    
}