Snuke has N sticks. The length of the i-th stick is l_i.

Snuke is making a snake toy by joining K of the sticks together.

The length of the toy is represented by the sum of the individual sticks that compose it. Find the maximum possible length of the toy.

Constraints

* 1 \leq K \leq N \leq 50
* 1 \leq l_i \leq 50
* l_i is an integer.

Input

Input is given from Standard Input in the following format:


N K
l_1 l_2 l_3 ... l_{N}


Output

Print the answer.

Examples

Input

5 3
1 2 3 4 5


Output

12


Input

15 14
50 26 27 21 41 7 42 35 7 5 5 36 39 1 45


Output

386
import java.util.*;
public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      	int n = sc.nextInt();
      	int k = sc.nextInt();
      	int[] l = new int[n];
      	for(int i = 0; i < n; i++){
        	l[i] = sc.nextInt();
        }
      	Arrays.sort(l);
      	int sum = 0;
      	for(int i = n-1; i > n-k-1; i--){
        	sum += l[i];
        }
      	System.out.println(sum);
    }
}