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

    for(itr=1;itr<size;itr++)
    {
        for(ind=0;ind<size-itr;ind++){
            if(arr[ind]>arr[ind+1]){
            temp=arr[ind];
            arr[ind]=arr[ind+1];
            arr[ind+1]=temp;
            }
        }
    }
    printf("%d,*(arr + (k-1)));
    return 0;
}