#include <iostream>
using namespace std;

int main(){
	constexpr int arr[] = {1, 0, 0, 0, 1, 0, 1, 0, 2, 1};
	string s;
	cin >> s;
	int ans = 2 * s.size() + 1;
	for(auto& c:s) ans += arr[c - '0'];
	cout << ans << endl;
}