StringLength

namespace StringLength
{
    using System;

    public class StringLength
    {
        public static void Main()
        {
            string input = Console.ReadLine();

            if (input.Length < 20)
            {
                Console.WriteLine(input + new string('*', 20-input.Length));
            }

            else if (input.Length == 20)
            {
                Console.WriteLine(input);
            }

            else if (input.Length > 20)
            {
                string newString = input.Substring(0, 20);
                Console.WriteLine(newString);
            }
        }
    }
}