import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int a = 0;
        String ans = "";
        for(int i = 0; i < 5; i++) {
            a = in.nextInt();
            if(a % 15 == 0) {
                ans += "FizzBuzz";
            } else if(a % 3 == 0) {
                ans += "Fizz";
            } else if(a % 5 == 0) {
                ans += "Buzz";
            } else {
                ans += String.valueOf(a);
            }
        }

        System.out.println(ans.length());
    }
}