#include<bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
	string n;
	cin >> n;
	int count=0;
	for (int i = 0;i < n.size();i++) {
		if (n[i] == '0' || n[i] == '4' || n[i] == '6' || n[i] == '9') {
			count += 3;
		}
		else if (n[i] == '8') {
			count += 4;
		}
		else {
			count += 2;
		}
	}
	count++;
	cout << count << endl;
	return 0;
}