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

int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    
    int n; cin >> n;
    vector<int> c(10, 0);
    for(char x : to_string(n)) c[x - '0']++;
    int num = to_string(n).size(), hole = 0;
    hole += c[0] + c[4] + c[6] + c[9] + c[8] * 2;
    int ans1 = num * 2 + hole + 1;
    int ans2 = 2 * (hole + 1) + num;
    cout << min(ans1, ans2) << endl;
}