#include <iostream>
#include <string>
using namespace std;
int main(void) {
	string line = "";
	int n;
	for (int i = 0; i < 5; ++i) {
		cin >> n;
		if (n % 3 == 0 && n % 5 == 0)
			line += "FizzBuzz";
		else if (n % 3 == 0 || n % 5 == 0)
			line += "Fizz";
		else
			line += to_string(n);
	}
	cout << line.size() << endl;
	return 0;
}