namespace Problem03
{
    using System;
    using System.Numerics;
    using System.Text;
    using System.Text.RegularExpressions;

    class Program
    {
        static void Main()
        {
            string input = Console.ReadLine().ToLower();
            StringBuilder result = new StringBuilder();

            var matches = Regex.Matches(input, @"(aa|aba|bcc|cc|cdc)");

            foreach (Match match in matches)
            {
                switch (match.Groups[0].Value)
                {
                    case "aa":
                        result.Append(0);
                        break;
                    case "aba":
                        result.Append(1);
                        break;
                    case "bcc":
                        result.Append(2);
                        break;
                    case "cc":
                        result.Append(3);
                        break;
                    case "cdc":
                        result.Append(4);
                        break;
                }
            }

            BigInteger decResult = 0;
            for (int i = 0; i < result.Length; i++)
            {
                BigInteger power = BigInteger.Pow(5, result.Length - i - 1);
                BigInteger currentDigit = BigInteger.Parse(result[i] + "") * power;
                decResult += currentDigit;
            }

            Console.WriteLine(decResult);
        }
    }
}