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

class Program
{
    static void Main()
    {
        List<int> numbers = Console.ReadLine()
            .Split()
            .Select(int.Parse)
            .ToList();

        for (int i = 1; i < numbers.Count - 1; i++)
        {
            int previousNumber = numbers[i - 1];
            int currentNumber = numbers[i];
            int nextNumber = numbers[i + 1];

            if (currentNumber == previousNumber + nextNumber)
            {
                numbers.RemoveRange(i - 1, 3);
                numbers.Insert(i - 1, currentNumber);
                i = 0;
            }
        }
        Console.WriteLine(string.Join(" ", numbers));
    }
}