C#_Lists_1.2.Gauss'_Trick

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

namespace _1._2.Gauss__Trick
{
    class Program
    {
        static void Main()
        {
            List<int> numbers = Console.ReadLine().Split().Select(int.Parse).ToList();

            int count = numbers.Count / 2;

            for (int i = 0; i < count; i++)
            {
                numbers[i] += numbers[numbers.Count - 1];
                numbers.RemoveAt(numbers.Count - 1);

            }

            Console.WriteLine(string.Join(" ", numbers));
        }
    }
}