using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
class Program
{
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var s = ReadLine();
        WriteLine(Pass(s));
    }
    static int Pass(string s)
    {
        var nums = 0;
        var codes = 0;
        foreach (var si in s)
        {
            if (si == 'l' || si == 'o') ++nums;
            if (si == 'a' || si == 's') ++codes;
        }
        var ans = ((1 << nums) - 1) * ((1 << codes) - 1);
        return Math.Max(0, nums + codes == s.Length ? ans - 1 : ans);
    }
}