import java.io.PrintWriter;
import java.util.Scanner;

public class hw
{
	static Scanner sc = new Scanner(System.in);
		
	public static void main(String[] args) 
	{
		int birth;
		int current;
		
		//user what year they were born
		System.out.println("What year were you born");
		birth = sc.nextInt();
		//ask user what the current year is
		System.out.println("What is the current year?");
		current = sc.nextInt();
		
		int age = current - birth;			

	
		boolean prime;
		boolean perfect;
				
		prime = isPrime(age);
		perfect = isPerfect(age);



		if(prime)
			{ System.out.println("your age is prime"); }
		if(perfect)
			{ System.out.println("your age is perfect");}
	// done with main
	}
	// start a new function, isPerfect, which tests if the number is ap perfect power			
	public static boolean isPerfect(int number)
      {
			for(int i = 1; i <= 10; i++) 
			{
				if((i*i) == number)
					{ return true; } 
				else if((i*i*i) == number)
					{ return true; }
			}
		   return false;
		}
	public static boolean isPrime(int number) 
		{
			for(int i = 1; i <= number; i--)
			{
				if(number  % i == 0)
					{ return false; }
				else if(i == 1)
					{ return true; }
			}
		   return false;
		}
				
}