using System;

public class Program

{

    public static void Main()

    {

        // Write a program to find all unique combinations in arr[] where the sum is equal to x. 

        // Input: arr[] = 2, 4, 6, 8, x = 8

        // Output: 

        // [2, 2, 2, 2]

        // [2, 2, 4]

        // [2, 6]

        // [4, 4]

        // [8]

    }

}