import java.io.File;
import java.util.Scanner;
import java.util.LinkedList;
import java.util.PriorityQueue; // For Renewals

public class MVD {
  public static void main(String[] args) {
    if (args.length != 1) {
      System.out.println("Syntax: java MVD datafile.txt");
      System.exit(0);
    }
    try {
      File file = new File(args[0]);
      Scanner in = new Scanner(file);
      in.nextLine(); // Skip over example line
      char transaction, payment;
      int time;
      String name;
      LinkedList<Person> signin = new LinkedList<Person>();
      while (in.hasNext()) {
        // This populates the main queue completely, which has a 'time' field which simulates various timed entries.
        transaction = (char)in.next().charAt(0);
        payment = (char)in.next().charAt(0);
        time = Integer.parseInt(in.next());
        name = in.nextLine().trim();
        Person signedin = new Person(transaction, payment, time, name);
        signin.add(signedin);
      }
      // Then from here, populate each queue and pretend-wait.
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

public class Person {
  private char transaction;
  private char payment;
  private int time;
  private String name;
  
  public Person(char trans, char pay, int timeEntered, String personName) {
    transaction = trans;
    payment = pay;
    time = timeEntered;
    name = personName;
  }
}