using System;
using System.Linq;

namespace removeNegativeAndReverse
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            var list = Console.ReadLine().Split(' ').Select(int.Parse).Where(x=> x>0).Reverse().ToList();
            Console.WriteLine((!list.Any()) ? "empty" : string.Join(" ", list));
        }
    }
}