#include <fstream>
#include <iostream>
#include <vector>
#include <cmath>

int main() {

	//std::ifstream inf("Text.txt");	std::cin.rdbuf(inf.rdbuf());
	int ans = 0;

	std::vector<int> a(5);
	for (int i = 0; i < 5; i++) {
		std::cin >> a[i];
		if (a[i] % 15 == 0) {
			ans += 8;
		}
		else if (a[i] % 5 == 0) {
			ans += 4;
		}
		else if (a[i] % 3 == 0) {
			ans += 4;
		}
		else {
			ans += static_cast<int>(std::log10(a[i]) + 1);
		}
	}

	std::cout << ans << std::endl;

	return 0;
}