day 05.php

<?php
class Person{
    public $age;
   public function __construct($initialAge){
          // Add some more code to run some checks on initialAge
          if($initialAge<0){
              $this->age=0;
              print("Age is not valid, setting age to 0.\n");
          }
          else{
              $this->age=$initialAge;
          }

    }
    
   public  function amIOld(){
            // Do some computations in here and print out the correct statement to the console 
        if($this->age<13)print("You are young.\n");
        elseif($this->age>=13 and $this->age<18)print("You are a teenager.\n");
        else print("You are old.\n");
    }
   public  function yearPasses(){
          // Increment the age of the person in here
          $this->age=$this->age+1;

    }
   
      
}

$T = intval(fgets(STDIN));