package com.company;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
	// write your code here
        Scanner s = new Scanner(System.in);
        int count = 0;
        while (s.hasNext()) {
            int n = s.nextInt();
            if (n % 3 == 0 && n % 5 == 0) {
                count = count + 8;
            } else if (n % 3 == 0 || n % 5 == 0) {
                count = count + 4;
            } else {
                count = count + 1;
            }
        }
        System.out.println(count);
    }
}