import java.util.*;

/**
 * Write a description of class TicketAgent here.
 * 
 * @author Jerediah Fevold
 * @version 3 Nov 06
 */
public class TicketAgent
{
   
    public static void main(String[] args) {
            // instance variables
    int rand1 = 0;
    int custNum = 0;
    int inLine = 0;
    int customers = 0;
    String front = "";

        Line line = new Line();
        Random randNum = new Random(500);
        Random randCust = new Random (25);
            customers = randCust.nextInt();
            
        while(customers > 0) {
            rand1 = randNum.nextInt();
            if(rand1 == 250) {
                line.enqueue(new Customer(custNum));
                custNum = custNum + 1;
                inLine = inLine + 1;
                System.out.println(front + "has entered the queue");
            }
            
            if(rand1 == 150 || inLine > 0) {
                front = line.peekFront().toString();
                line.dequeue();
                System.out.println(front + "has left the queue");
                inLine = inLine - 1;
                customers = customers - 1;
            }
            
        }
    }
    
    
}