#include <iostream>
#include <algorithm>
#include <string>
using namespace std;

int main()
{
    int a[5];
    for (auto& x : a) cin >> x;

    int ans = 0;
    for (auto& x : a) {
        if (!(x % 3)) ans += 4;
        if (!(x % 5)) ans += 4;
        if (x % 3 and x % 5) {
            while (x) {
                ans++;
                x /= 10;
            }
        }
    }

    cout << ans << endl;

    return 0;
}