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

namespace ConsoleApplication24
{
    class Program
    {
        static void Main(string[] args)
        {
            var text = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();
            var sum = text.Take(text.Length / 4).Reverse().ToArray();
            var sum2 = text.Reverse().Take(text.Length / 4).ToArray(); ;
            var Secondrow = text.Skip(text.Length / 4).Take(text.Length / 2).ToArray(); ;
          var Firstrow=sum.Concat(sum2).ToArray();
          var last = new int[text.Length / 2];
          for (int i = 0; i < last.Length; i++)
          {
              last[i] = Firstrow[i] + Secondrow[i];
          }
          Console.WriteLine(string.Join(" ",last));
        }
    }
}