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

class Program
{
    static int NN => int.Parse(ReadLine());
    static long[] NList => ReadLine().Split().Select(long.Parse).ToArray();
    static string[] SList(long n) => Enumerable.Repeat(0, (int)n).Select(_ => ReadLine()).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var s = ReadLine();
        var inner = new int[] { 1, 0, 0, 0, 1, 0, 1, 0, 2, 1 };
        var white = 1;
        foreach (var c in s) white += inner[c - '0'];
        var black = s.Length;
        WriteLine(Math.Min(white * 2 + black, white + black * 2));
    }
}