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

namespace aaa
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int thirdNumber = n % 10;
            n /= 10;
            int secondNumber = n % 10;
            n /= 10;
            int firstNumber = n % 10;
            Console.WriteLine($"{firstNumber} ,{secondNumber}, {thirdNumber}");
        }
    }
}