3. Sum Adjacent Equal Numbers

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

namespace _3.Sum_Adjacent_Eq_Numbers
{
    class Program
    {

        static void Main(string[] args)
        {

            List<double> numbers =  Console.ReadLine().Split(' ').Select(double.Parse).ToList();
            NumbersEqual(numbers);

            Console.WriteLine(String.Join(" ", numbers));


        }
        static void NumbersEqual(List<double> numbers)
        {
            for (int i = 0; i < numbers.Count; i++)
            {

                double sum = 0;

                if (i + 1 >= numbers.Count)
                {

                    break;
                }
                if (numbers[i] == numbers[i + 1])
                {
                    sum = numbers[i] + numbers[i + 1];
                    numbers.RemoveAt(i);
                    numbers.RemoveAt(i);
                    numbers.Insert(i, sum);
                    NumbersEqual(numbers);
                    break;
                }
            }
        }
    }
}