/*

Given an array of numbers. Print all the pairs (2) of numbers in the array if the sum of those numbers is also present in the array. 

​

Input

int a[] = {10, 5, 2, 7, 7, 49}

Output  (5,2)

*/

​

using System;

public class Program

{

    public static void Main()

    {

        int[] a = new int[]{10, 5, 2, 7, 7, 49};

    }

}