#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
  string s;
  cin>>s;
  int ans=s.length()*2+1;
  for(int i=0;i<(int)s.size();i++){
    if(s[i]=='0') ans+=1;
    if(s[i]=='4') ans+=1;
    if(s[i]=='6') ans+=1;
    if(s[i]=='8') ans+=2;
    if(s[i]=='9') ans+=1;
  }
  int tmp=2+s.length();
  for(int i=0;i<(int)s.size();i++){
    if(s[i]=='0') tmp+=1;
    if(s[i]=='4') tmp+=1;
    if(s[i]=='6') tmp+=1;
    if(s[i]=='8') tmp+=2;
    if(s[i]=='9') tmp+=1;
  }
  cout<<min(ans,tmp)<<endl;
  return 0;
}