Class Assignments 1-6

import java.util.Scanner;

public class Crown {
    public static void main(String[] args) {
        //------------Ex1-----------------------------
        /*
        Scanner sc = new Scanner(System.in);
        int num, powerNum;
        System.out.println("Please enter a number: ");
        num = sc.nextInt();
        for(int i = 1; i <= num; i++) {
            System.out.println("The power of " + i + " is " + i*i + ".");
        }
        */
        //------------Ex2-----------------------------
        /*
        Scanner sc = new Scanner(System.in);
        int num, numOfOdds = 0;
        String s = "";
        System.out.print("Please enter 10 numbers: ");
        for(int i = 0; i < 10; i++) {
            num = sc.nextInt();
            if(num%2 == 1) {
                numOfOdds += 1;
                s += (num + " ");
            }
        }
        System.out.printf("The number of odd numbers is %d", numOfOdds);
        */
        //------------Ex3-----------------------------
        /*
        Scanner sc = new Scanner(System.in);
        int num;
        System.out.print("Please enter a number: ");
        num = sc.nextInt();
        for(int i = 3; i <= num; i += 3) {
            System.out.println(i);
        }
        */
        //------------Ex4-----------------------------
        /*
        Scanner sc = new Scanner(System.in);
        int num;
        System.out.print("Please enter a number: ");
        num = sc.nextInt();
        for(int i = num; i > 0; i--) {
            if(i%3 == 0) {
                System.out.println(i);
            }
        }
        */
        //------------Ex5-----------------------------
        /*
        Scanner sc = new Scanner(System.in);
        int num;
        System.out.print("Please enter a number: ");
        num = sc.nextInt();
        for(int i = 1; i <= num; i += 1) {
            if(i % 7 == 0) {
                System.out.println("Boom!");
            } else {
                System.out.println(i);
            }
        }
        */
        //------------Ex6-----------------------------
        Scanner sc = new Scanner(System.in);
        int num, temp = 0;
        System.out.print("Please enter a number: ");
        num = sc.nextInt();
        for(int i = 3; i <= num; i += 3) {
            for(int j = i; j > 0; j/=10) {
                temp += j%10;
            }
            if(temp < 5) {
                System.out.println(i);
            }
            temp = 0;
        }
    }
}