Problem:
Score : 200 points

Problem Statement

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.

Sample Input 1

5 3
1 2 3 4 5

Sample Output 1

12

You can make a toy of length 12 by joining the sticks of lengths 3, 4 and 5, which is the maximum possible length.

Sample Input 2

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

Sample Output 2

386

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.Arrays;
import java.util.Comparator;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {

		Scanner scanner=new Scanner(System.in);

		int n=scanner.nextInt();

		int k=scanner.nextInt();
		
		Integer[] data=new Integer[n];
		
		for(int i=0;i<n;i++) {
			data[i]=scanner.nextInt();
		}
		
		Arrays.sort(data,Comparator.reverseOrder());
		
		int result=0;
		for(int i=0;i<k;i++) {
			result+=data[i];
		}
		
		System.out.println(result);



		scanner.close();

	}

	public static int getsumofkakuketa(int n) {

		int result=0;

		while(true) {

			result+=n%10;

			if(n/10!=0) {
				n/=10;
			}else {
				return result;
			}
		}



	}

	public static boolean isMacthed(int a,int b,int sum) {

		if(sum>=a && sum<=b) {
			return true;
		}else {
			return false;
		}

	}



}