#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <climits>
#include <cfloat>
#include <cstring>
#include <map>
#include <utility>
#include <set>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <sstream>
#include <complex>
#include <stack>
#include <queue>
#include <unordered_set>
#include <unordered_map>
using namespace std;

int cs[] = { 1,0,0,0,1,0,1,0,2,1 };
int main(void)
{
	string s;
	cin >> s;
	int cost = 1;
	for (char c : s)
	{
		cost += cs[c - '0'];
		cost += 2;
	}
	cout << cost << endl;
	return 0;
}