#include <iostream>
#include <cmath>
using namespace std;

int main(int argc, const char * argv[]) {
    int sum = 0;
    for (int i = 0; i < 5; i++) {
        int a; cin >> a;
        if (a % 3 == 0 && a % 5 == 0) {
            sum += 8;
        } else if (a % 3 == 0) {
            sum += 4;
        } else if (a % 5 == 0) {
            sum += 4;
        } else {
            int cal = int(log10(a)) + 1;
            sum += cal;
        }
    }
    
    cout << sum << endl;

    return 0;
}