UVA 10038 Java

import static java.lang.System.*;
public class main{
  public static void main(String[] args) {
    Scanner sc=new Scanner(System.in);
    while(sc.hasNextInt())
    {
    	int size = sc.nextInt();
    	boolean is_jolly = true;
    	if(size != 1)
    	{
    		int[] input = new int[size];
    		for(int i = 0; i < size; i++)
    			input[i] = sc.nextInt();
    		int[] dif = new int[size -1];
    		for(int i = 0; i < size-1; i++)
    			dif[i] = Math.abs(input[i+1] - input[i]);
    		Arrays.sort(dif);
    		for(int i = 0; i < size-1; i++)
    			if(dif[i] != i+1)
    			{
    				is_jolly = false;
    				break;
    			}
    	}
    	else
    		sc.nextInt();
    	if(is_jolly)
    		System.out.println("Jolly");
    	else
    		System.out.println("Not jolly");
    }
  }
};