TrippleSum

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace loops
{
    class loops
    {
        static void Main(string[] args)
        {
            int [] arr= Console.ReadLine().Split(' ').Select(int.Parse)
                .ToArray();

            int count = 0;
            for (int i= 0; i < arr.Length; i++)
            {
                for (int j = i+1; j < arr.Length; j++)
                {
                    int a = arr[i];
                    int b = arr[j];
                    int sum = a + b;

                    if (arr.Contains(sum))
                    {
                        Console.WriteLine("{0} + {1} == {2}", a, b, sum); count++;
                    }
                }
            }
            if (count == 0)
            {
                Console.WriteLine("No");
            }

        }
    }
}