#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vll=vector<long long>;
template<typename T>T get(){T r;cin>>r;return r;}
template<typename T>vector<T> get_v(ll n){vector<T> v;for(int i=0;i!=n;i++){v.push_back(get<T>());};return v;}
template<typename T>void show_v(vector<T> v){for(auto &i:v){cout<<i<<" ";}cout<<""<<endl;}
ll digit(ll n){
    if (n<=2) return 1;
    return (ll)log10(n)+1;
}
int main() {
    vll a=get_v<ll>(5);
    ll sum=0;
    for(auto &i:a){
        if(i%15==0){
            sum+=8;
        }else if(i%5==0||i%3==0){
            sum+=4;
        }else{
            sum+=digit(i);
        }
    }
    cout<<sum<<endl;

    system("pause");
}