#include "bits/stdc++.h"

using namespace std;

using ll = long long;
using ld = long double;
using P = pair<int, int>;
constexpr ld EPS = 1e-12;
constexpr int INF = numeric_limits<int>::max() / 2;
constexpr int MOD = 1e9 + 7;

int cnt[10] = {1, 0, 0, 0, 1, 0, 1, 0, 2, 1};

int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);

    string s;
    cin >> s;
    int n = s.length();
    int sum = 0;
    for (int i = 0; i < n; i++)
        sum += cnt[s[i] - '0'];
    cout << min((1 + sum) * 2 + n, (1 + sum) + 2 * n) << endl;
}