03

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

namespace ExamPreparation
{
    class Startup
    {
        static void Main()
        {
            int[] numbers = Console.ReadLine()
                .Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries)
                .Select(x => int.Parse(x))
                .ToArray();
            int k = numbers.Length/4;

            IEnumerable<int> firstPart = numbers.Take(k).Reverse();
            IEnumerable<int> lastPart = numbers.Skip(3 * k).Reverse();

            int[] firstHalf = firstPart.Concat(lastPart).ToArray();
            int[] middlePart = numbers.Skip(k).Take(2 * k).ToArray();

            IEnumerable<int> folded = firstHalf.Select((number, index) => number += middlePart[index]);

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