using System;
using System.Collections.Generic;
using System.Linq;
using static System.Console;

class Program
{
    static void Main()
    {
        WriteLine(ReadLine().Split().Select(int.Parse).Sum(x => x % 15 == 0 ? 8 : x % 5 == 0 || x % 3 == 0 ? 4 : x.ToString().Length));
    }
}