TripleSum-100Points

using System;
using System.Linq;

namespace _04Problem_TripleSum
{
    class TripleSum
    {
        static void Main(string[] args)
        {
            long[] numbers = Console.ReadLine().Split(' ').Select(long.Parse).ToArray();
            bool haveMatch = false;

            for (int leftDigit = 0; leftDigit < numbers.Length; leftDigit++)
            {
                for (int rightDigit = leftDigit + 1; rightDigit < numbers.Length; rightDigit++)
                {
                    for (int sum = 0; sum < numbers.Length; sum++)
                    {
                        if (numbers[leftDigit] + numbers[rightDigit] == numbers[sum])
                        {
                            haveMatch = true;
                            Console.WriteLine($"{numbers[leftDigit]} + {numbers[rightDigit]} == {numbers[sum]}");
                            break;
                        }
                    }
                }
            }

            if (!haveMatch)
            {
                Console.WriteLine("No");
            }
        }
    }
}