class Driver {
	public static void main(String[] args) {
		Vehicle x = new Vehicle("123abc");
		Vehicle y = new Vehicle("123abc");
		Vehicle z = new Vehicle("123xyz");

		if (x.equals(y)) {
			System.out.println("x equals y");
		}
		else {
			System.out.println("x not equals y");
		}
	
		if (x.equals(z)) {
			System.out.println("x equals z");
		}
		else {
			System.out.println("x not equals z");
		}
		
	}



}