#include<stdio.h>
int main(){
    int size,ind,k,itr,temp;
    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;
    

}