[C#][Arrays] Tripple Sum

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

namespace Practice
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] nums = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();
            bool notEql = true;
            for (int i = 0; i < nums.Length; i++)
            {
                for (int j = i+1; j < nums.Length; j++)
                {
                    if (nums.Contains(nums[i] + nums[j]))
                    {
                        Console.WriteLine($"{nums[i]} + {nums[j]} == {nums[i] + nums[j]}");
                        notEql = false;

                    }
                }
            }
            if (notEql)
            {
                Console.WriteLine("No");
            }
        }
    }
}