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

class Program
{
    public void Solve()
    {
        List<int> a = Console.ReadLine().Split(' ').Select(x => int.Parse(x)).ToList();
        int count = 0;
        foreach (var N in a)
        {
            if (N % 15 == 0)
            {
                count += "FizzBuzz".Count();
            }
            else if (N % 3 == 0)
            {
                count += "Fizz".Count();
            }
            else if (N % 5 == 0)
            {
                count += "Buzz".Count();
            }
            else
            {
                count += N.ToString().Count();
            }
        }
        Console.WriteLine(count);
    }

    static void Main()
    {
        var solver = new Program();
        solver.Solve();
    }
}