
Jolly Jumpers 
Time Limit: 1000ms, Special Time Limit:2500ms, Memory Limit:32768KB 
Total submit users: 68, Accepted users: 60 
Problem 10026 :
No special judgement

Problem description 
A sequence of n > 0 integers is called a jolly jumper if the absolute values of the difference between successive elements take on all the values 1 through n1. For instance,
1 4 2 3
is a jolly jumper, because the absolutes differences are 3, 2, and 1 respectively. The definition implies that any sequence of a single integer is a jolly jumper. You are to write a program to determine whether or not each of a number of sequences is a jolly jumper.

Input 
Each line of input contains an integer n < 3000 followed by n integers representing the sequence.

Output 
For each line of input, generate a line of output saying "Jolly" or "Not jolly".

Sample Input 
4 1 4 2 3
5 1 4 2 1 6 
Sample Output 
Jolly
Not jolly 
Problem Source 
Waterloo 2000

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