02. Gauss' Trick

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

namespace GaussTrick
{
    class Program
    {
        static void Main(string[] args)
        {
            List<int> input = Console.ReadLine()
                .Split(' ', StringSplitOptions.RemoveEmptyEntries)
                .Select(int.Parse)
                .ToList();

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

            for (int i = 0; i < input.Count / 2; i++)
            {
                gauss.Add(input[i] + input[input.Count - (1 + i)]);
            }
            if (input.Count % 2 == 1)
            {
                gauss.Add(input[input.Count / 2]);
            }
            Console.WriteLine(string.Join(' ', gauss));
        }
    }
}