import java.io.*;
import java.util.*;

class Patient {
    private String name;
    private String problem;
    private int number;

    public Patient(String name, String problem, int number) {
	this.name = name;
	this.problem = problem;
	this.number = number;
    }

    public String toString() {
	return "name: " + name + ",  problem: " + problem + ",  number: " + number;
    }
}

class Demo {

    static LinkedList queue = new LinkedList();

    static void arrive(Patient patient) {
	queue.addLast(patient);
    }

    static Patient treat() {
	if (queue.isEmpty()) {
	    return null;
	} else {
	    return (Patient)queue.removeFirst();
	}
    }

    /*
      arrive Jim sunburn
      arrive Ann brokenwrist
      arrive John heartattack
      arrive Sue headache
      treat
    */

    public static void main(String[] args) {
	int number = 1;
	for (;;) {
	    String line = readLine();
	    StringTokenizer tok = new StringTokenizer(line);
	    String verb = tok.nextToken();

	    if (verb.equals("arrive") || verb.equals("a")) {
		String name = tok.nextToken();
		String problem = tok.nextToken();
		Patient patient = new Patient(name, problem, number);
		number++;
		arrive(patient);
	    } else if (verb.equals("treat") || verb.equals("t")) {
		Patient patient = treat();
		if (patient == null) {
		    System.out.println("No patients, take a break");
		} else {
		    System.out.println("treating patient " + patient);
		}
	    } else if (verb.equals("exit") || verb.equals("e")) {
		break;
	    }
	}
    }

    static String readLine() {
	BufferedReader in =
	    new BufferedReader(new InputStreamReader(System.in));
	System.out.print("\n? ");
	String line = null;
	try { line = in.readLine(); }
	catch (IOException e) { }
	return line;
    }

}