//No.637 X: Yet Another FizzBuzz Problem
#include<iostream>
#include<string>
using namespace std;
string fizbuz(int _N);
int main()
{
	int N;
	
	string str;
	for (int i = 0; i < 5; i++) {
		cin >> N;
		str += fizbuz(N);
	}
	cout << str.length()<<endl;
	return 0;
}

string fizbuz(int _N) {
	string _str;
	if (_N % 5 == 0 && _N % 3 == 0)return "FizzBuzz";
	if (_N % 5 == 0)return "Buzz";
	else if (_N % 3 == 0)return "Fizz";
	return to_string(_N);
}