class ControlStatements2 {

	// need to run this program with one argument.
	public static void main(String args[]) {
		int argVal;

		argVal = Integer.parseInt(args[0]);

		switch(argVal) {
			case 0:
				System.out.println("Zero.");
				break;
			case 1:
				System.out.println("One.");
				break;
			case 2:
				System.out.println("Two.");
				break;
			case 3:
				System.out.println("Three.");
				break;
			default:
				System.out.println("Sorry, I only understand numbers between 0 and 3.");
				break;
		}
	}

}