public static void main(String[] args) {
		// Working with Loops

		int number = 1;

		while (number <= 10) {
			System.out.println(number);
			number++;
		}

		int number2 = 11;

		do {
			System.out.println(number2);
			number2++;
		} while (number2 <= 20);

		for (int i = 21; i <= 30; i++) {
			System.out.println(i);
		}
	}