#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define loop(i,a,b) for(i=a;i<b;i++)
#define rloop(i,a,b) for(i=a;i>=b;i--)
#define vi vector<int>
#define vl vector<ll>
#define vii vector< vector<int> >
#define vll vector< vector<ll> >
#define vs vector<string>
const int inf=1000000001;
const ll INF=1e16;
#define MOD 1000000007
#define mod 1000000009
#define pi 3.14159265358979323846

int main(){
	string n;
	int i;
	cin>>n;
	ll sum=0;
	loop(i,0,n.size()){
		if(n[i]=='0'||n[i]=='4'||n[i]=='6'||n[i]=='9'){
			sum+=3;
		}else if(n[i]=='8'){
			sum+=4;
		}else{
			sum+=2;
		}
	}
	sum++;
	cout<<sum<<endl;
}