using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main(string[] args)
    {
        var S = Console.ReadLine();

        var suuji = S.Where(x => x == 'l').Count();
        suuji += S.Where(x => x == 'o').Count();

        var kigou = S.Where(x => x == 'a').Count();
        kigou += S.Where(x => x == 's').Count();

        Console.WriteLine((Math.Pow(2, suuji) - 1) * (Math.Pow(2, kigou) - 1));
    }
}