#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <map>
#include <queue>
#include <cmath>
#include <stack>

int main (void){
	int count = 0;

	for (size_t i = 0; i < 5; i++)
	{
		int num;
		std::cin >> num;

		if (num % 3 == 0) {
			count += 4;
		}
		if (num % 5 == 0) {
			count += 4;
		}
		if (num % 3 != 0 && num % 5 != 0) {
			count += (int)log10(num) + 1;
		}
	}

	std::cout << count << std::endl;
	return 0;
}