#include<iostream>
#include<cstdio>
#include<cstring>
#include <cstdlib>  
#include <cmath>   
#include<cctype>
#include<string>
#include<set>
#include <map>
#include<algorithm>
#include <functional>
#include<vector>
#include<climits>
#include<stack>
#include<queue>
#include <deque>
#include <climits>
#include <typeinfo>
#include <utility> 
#define all(x) (x).begin(),(x).end()
#define rep(i,m,n) for(int i = m;i < n;++i)
#define pb push_back
#define fore(i,a) for(auto &i:a)
#define rrep(i,m,n) for(int i = m;i >= n;--i)
#define INF INT_MAX/2
using namespace std;
using ll = long long;
using R = double;
const ll MOD = 1e9 + 7;
const ll inf = 1LL << 50;
struct edge { ll from; ll to; ll cost; };

int main(){
	int ring[10] = { 1,0,0,0,1,0,1,0,2,1 };
	int n;
	cin >> n;

	int ringcnt = 0;
	int digit = 0;
	if (n == 0) {
		digit = 1;
		ringcnt = ring[0];
	}
	while (n > 0) {
		ringcnt += ring[n % 10];
		n /= 10;
		digit++;
	}


	cout << min(2 * digit + ringcnt + 1,2*(ringcnt + 1)+digit) << endl;
	
	return 0;
}