Scanner scanner = new Scanner(System.in);

ArrayList<Integer> list = new ArrayList<>();

while(scanner.hasNextInt()){

list.add(scanner.nextInt());

}

int len = list.size();

int arr[] = new int[len-1];

int k = list.get(len-1);

for(int i=0;i<len-1;i++){

arr[i] = list.get(i);

}

Arrays.sort(arr);

System.out.println(arr[arr.length-k]);