using System;
using System.Linq;

namespace _3.Group_Numbers
{
    public class Program
    {
        public static void Main()
        {
            var input = Console.ReadLine()
                .Split(new string[] { ", " }, StringSplitOptions.RemoveEmptyEntries)
                .Select(int.Parse)
                .ToArray();

            var reminder0 = input.Where(num => Math.Abs(num) % 3 == 0).ToArray();
            var reminder1 = input.Where(num => Math.Abs(num) % 3 == 1).ToArray();
            var reminder2 = input.Where(num => Math.Abs(num) % 3 == 2).ToArray();

            var matrix = new int[3][];
            matrix[0] = reminder0;
            matrix[1] = reminder1;
            matrix[2] = reminder2;

            foreach (var col in matrix)
            {
                Console.WriteLine(string.Join(" ", col));
            }
        }
    }
}