/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.Scanner;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone {

    public static void main(String[] args) {

	    int podajPIN;
	    int PIN = "0999".hashCode();
	
	    System.out.println("Podaj PIN");
	    podajPIN = getString();
	
	    if (podajPIN == PIN) {
	        System.out.println("Podałeś dobry PIN");
	    } else {
	        System.out.println("Podany PIN jest nieprawidłowy");
	    }
    }

	public static int getString() { 
		return new Scanner(System.in).nextLine().hashCode();
	}
	
}