/* -*- coding: utf-8 -*-
 *
 * 509.cc: No.509 塗りつぶしツール - yukicoder
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

const int hns[] = { 1, 0, 0, 0, 1, 0, 1, 0, 2, 1 };

/* typedef */

typedef vector<int> vi;
typedef queue<int> qi;
typedef pair<int,int> pii;

/* global variables */

/* subroutines */

/* main */

int main() {
  string s;
  cin >> s;

  int n = s.size(), wn = 1;
  for (int i = 0; i < n; i++) wn += hns[s[i] - '0'];

  printf("%d\n", min(wn + 2 * n, wn * 2 + n));
  return 0;
}