#include <bits/stdc++.h>
using namespace std;

#define FOR(i,l,r) for(int i = (int) (l);i < (int) (r);i++)
#define ALL(x) x.begin(),x.end()
template<typename T> bool chmax(T& a,const T& b){ return a < b ? (a = b,true) : false; }
template<typename T> bool chmin(T& a,const T& b){ return b < a ? (a = b,true) : false; }
typedef long long ll;

int A [10] = {1,0,0,0,1,0,1,0,2,1};
int N;
string S;

int main()
{
	cin >> S;
	N = S.size();

	int a = 1,b = 0;
	FOR(i,0,N){
		a += A [S [i] - '0'];
		b++;
	}
	if(a <= b){
		printf("%d\n",a * 2 + b);
	}
	else{
		printf("%d\n",a + b * 2);
	}

	return 0;
}