using System.Collections.Generic;
public static void Main()
var input = new int[] {3, 5, -4, 8, 11, 1, -1, 6};
var result = FindTargetSumPair(input, 10);
Console.WriteLine($"Pair is {result[0]} and {result[1]}");
public static int[] FindTargetSumPair(int[] input, int targetSum){