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

#define int long long

#define rep(i,n) for(int i=0;i<(n);i++)
#define pb push_back
#define all(v) (v).begin(),(v).end()
#define fi first
#define se second
typedef vector<int>vint;
typedef pair<int,int>pint;
typedef vector<pint>vpint;

template<typename A,typename B>inline void chmin(A &a,B b){if(a>b)a=b;}
template<typename A,typename B>inline void chmax(A &a,B b){if(a<b)a=b;}

int latte[]={1,0,0,0,1,0,1,0,2,1};

signed main(){
    string s;cin>>s;
    int ans=1;
    rep(i,s.size()){
        ans+=2;
        ans+=latte[s[i]-'0'];
    }
    cout<<ans<<endl;
    return 0;
}