# -*- coding: utf-8 -*-

from queue import Queue
import sys
import subprocess
import json
import time
import math
import re
#import sqlite3
import random
#import numpy as np
#from sklearn.datasets import fetch_mldata
#from statistics import mean, median, variance, stdev
#from chainer import cuda, Variable, FunctionSet, optimizers
#import chainer.functions as F

str1 = input()
#        0  1  2  3  4  5  6  7  8  9
list1 = [1, 0, 0, 0, 1, 0, 1, 0, 2, 1]
list2 = [v + 2 for v in list1]
ans = 0
for i in range(len(str1)):
    ans += list2[int(str1[i])]
print(ans + 1)