using System;
using System.Linq;

public class FoldAndSum
{
    public static void Main()
    {

        //int[] array = Console.ReadLine().Split(' ')
        //       .Select(int.Parse)
        //       .ToArray();

        //int[] firstPart = new int[array.Length / 4];
        //int[] secondPart = new int[array.Length / 4];
        //int[] thirdPart = new int[array.Length / 4];
        //int[] forthPart = new int[array.Length / 4];

        //int position = 0;
        //int part = array.Length / 4;

        //for (int i = position, j = 0; position < part; position++, j++)
        //{
        //    firstPart[j] = array[position];
        //}
        //for (int i = position, j = 0; position < (part * 2); position++, j++)
        //{
        //    secondPart[j] = array[position];
        //}
        //for (int i = position, j = 0; position < (part * 3); position++, j++)
        //{
        //    thirdPart[j] = array[position];
        //}
        //for (int i = position, j = 0; position < (part * 4); position++, j++)
        //{
        //    forthPart[j] = array[position];
        //}

        //Array.Reverse(firstPart);
        //Array.Reverse(forthPart);

        //int[] firstHaft = new int[array.Length / 2];
        //int[] secondHaft = new int[firstHaft.Length];

        //for (int i = 0, j = firstPart.Length; i < firstPart.Length; i++, j++)
        //{
        //    firstHaft[i] = firstPart[i];
        //    firstHaft[j] = forthPart[i];
        //    secondHaft[i] = secondPart[i];
        //    secondHaft[j] = thirdPart[i];
        //}

        //int[] sumResul = new int[firstHaft.Length];

        //for (int i = 0; i < firstHaft.Length; i++)
        //{
        //    sumResul[i] += firstHaft[i] + secondHaft[i];
        //}

        //foreach (int result in sumResul)
        //{
        //    Console.Write(result + " ");
        //}

        int[] numbers = Console.ReadLine().Split(' ')
                        .Select(int.Parse)
                        .ToArray();

        int[] leftHaft = new int[numbers.Length / 2];
        int[] rightHaft = new int[numbers.Length / 2];

        for (int i = leftHaft.Length - 1, j = numbers.Length -1, k = 0; i >= 0; i--, j--, k++)
        {
            leftHaft[k] = numbers[i];
            rightHaft[k] = numbers[j];
        }

        int[] revLeftHaft = new int[leftHaft.Length / 2];
        int[] revRightHaft = new int[leftHaft.Length / 2];

        for (int i = 0 , k = revLeftHaft.Length; i < revLeftHaft.Length; i++, k++)
        {
            revLeftHaft[i] = leftHaft[k];
            revRightHaft[i] = rightHaft[i];
        }

        int[] sumLeft = new int[leftHaft.Length];
        int[] sumRight = new int[rightHaft.Length];

        for (int i = 0, j = rightHaft.Length, k = revLeftHaft.Length; i < revRightHaft.Length; i++, k++, j++)
        {
            sumLeft[i] = revLeftHaft[i];
            sumLeft[k] = revRightHaft[i];
            sumRight[i] = numbers[k];
            sumRight[k] = numbers[j];
        }

        int[] result = new int[numbers.Length / 2];

        for (int i = 0; i < rightHaft.Length; i++)
        {
            result[i] += sumLeft[i] + sumRight[i];
        }


        foreach (var item in result)
        {
            Console.Write(item + " ");
        }

        Console.WriteLine();

    }
}