public class Ticket {
	private static int counter = 100;
	private int serialNumber;
	private String cinema;
	private boolean status;
	protected Ticket(String cinema){
		this.cinema = cinema;
		serialNumber = ++counter;
		status = true;
	}
	protected void setStatusToFalse(){
		status = false;
	}
	public boolean isValid(){
		return status;
	}
	public String toString(){
		return serialNumber+"\t"+cinema;
	}
}