#include <bits/stdc++.h>
using namespace std;

int main() {
	string s;
	cin >> s;
	int count = 0, count2 = 1;
	for (int i = 0;i < s.size();i++) {
		switch (s[i] - '0') {
		case 0:
		case 4:
		case 6:
		case 9:
			count += 2;
			count2+=2;
			break;
		case 8:
			count += 3;
			count2 += 4;
			break;
		default:
			count++;
			break;
		}
	}
	count++;
	count += s.size();
	count2++;
	count2 += s.size();
	cout <<min(count,count2) << endl;


	return 0;
}