content: import java.io.*;
  import java.util.*;
  
  public class Person {
      private int age;    
    
      public Person(int initialAge) {
            // Add some more code to run some checks on initialAge
            if(initialAge>0) {
                age = initialAge;
            } else {
                System.out.println("Age is not valid, setting age to 0.");
                age = 0;
            }
      }
  
      public void amIOld() {
            String output = "";
            if(age<13) {
                output = "You are young.";
            }
            else if(age < 18) {
                output = "You are a teenager.";
            } else {
            output = "You are old.";
            }
          System.out.println(output);
      }
  
      public void yearPasses() {
            // Increment this person's age.
            age++;
      }
  
  
  	public static void main(String[] args) {
  		Scanner sc = new Scanner(System.in);
  		int T = sc.nextInt();
  		for (int i = 0; i < T; i++) {
  			int age = sc.nextInt();
  			Person p = new Person(age);
  			p.amIOld();
  			for (int j = 0; j < 3; j++) {
  				p.yearPasses();
  			}
  			p.amIOld();
  			System.out.println();
          }
  		sc.close();
      }
  }