2. Gauss' Trick

using System;
using System.Linq;
using System.Collections.Generic;

namespace _02._Gauss__Trick
{
    class Program
    {
        static void Main(string[] args)
        {
            List<int> numbers = Console.ReadLine()
                .Split()
                .Select(int.Parse)
                .ToList();

            List<int> result = new List<int>();

                for (int i = 0; i < numbers.Count/2 ; i++)
                {
                    result.Add(numbers[i] + numbers[numbers.Count - 1-i]);
                }
                if (numbers.Count % 2 == 1)
                {
                    result.Add(numbers.Count / 2 + 1);
                }

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