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

namespace ConsoleApplication29
{
    class Program
    {
        static void Main(string[] args)
        {
            string str = Console.ReadLine();
            string[] stringSeparators = new string[] {", ", ". "};
            string[] strArr = str.Split(stringSeparators, StringSplitOptions.None);
            foreach(string i in strArr)
                Console.WriteLine(i);
            Console.ReadLine();
        }
    }
}