public class NoMod {
    public static void main1(String[] args) {
        int num = Integer.parseInt(args[0]);
        int den = Integer.parseInt(args[1]);
        int div = num / den; // this will round down so 5/2 = 2
        int mul = div * den;
        int modu = num - mul;
        System.out.println("The remainder of " + num + "/" + den + " is " + modu);
    }

    public static void main2(String[] args) {
        int count = 0;
        int drawn = 0;
        while (drawn < 90) {
            count++;
            drawn = (int) (Math.random() * (100 - 20 + 1) + 20); // to get a number in the range 20-100 including both 20 and 100 you need 81 possibilities, not just 80
        }
        System.out.println(count);
    }

    public static void main3(String[] args) {
        for (int i = 0; i <= 100; i++) {
            if (i % 3 == 0 && i % 5 == 0) {
                System.out.println("Fizz Buzz");
            } else if (i % 3 == 0) {
                System.out.println("Fizz");
            } else if (i % 5 == 0) {
                System.out.println("Buzz");
            } else {
                System.out.println(i);
            }
        }
    }

    public static void main4(String[] args) {
        Integer num = Integer.parseInt(args[0]);
        boolean isPrime = true; // start by assuming the number is prime
        for (int i = 2; i < num; i++) {
            if (num % i == 0) {
                isPrime = false;
            }
        }
        if (isPrime) {
            System.out.println(num + " is prime");
        } else {
            System.out.println(num + " is NOT prime");

        }
    }

    public static void main(String[] args) {
        Integer num = Integer.parseInt(args[0]);
        for (int j = 2; j < num; j++) {
            boolean isPrime = true; // start by assuming the number is prime
            for (int i = 2; i < j; i++) {
                if (j % i == 0) {
                    isPrime = false;
                }
            }
            if (isPrime) {
                System.out.println(j);
            }
        }
    }
}