#include<bits/stdc++.h>
#define rep(i,n)for(int i=0;i<(n);i++)
using namespace std;

int cnt[]{ 1,0,0,0,1,0,1,0,2,1 };
int main() {
	string s; cin >> s;
	int ans = 2, ans2 = 1;
	for (char c : s)ans += cnt[c - '0'] * 2 + 1, ans2 += cnt[c - '0'] + 2;
	cout << min(ans, ans2) << endl;
}