#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("Input Invalid");
        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;
}