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

namespace capitalize
{
    class Program
    {
        static void Main(string[] args)
        {
            while (true)
            {
                string[] input = Console.ReadLine()
                    .Split(new char[] {' ',',','.','!','?','[',']','{','}','/','\\','@','#','$','%','^','&','*','(',')','-','_','|','<','>','+',':',';','~','`', }
                    , StringSplitOptions.RemoveEmptyEntries).ToArray();
                if (input[0] == "end") { break; }
                for (int i = 0; i < input.Length; i++)
                {
                    input[i] = input[i].ToLower();
                    input[i] = char.ToUpper(input[i][0]) + input[i].Substring(1);
                }
                Console.WriteLine(string.Join(", ", input));
            }
        }
    }
}