Problem description A sequence of n > 0 integers is called a

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Problem description A sequence of n > 0 integers is called a jolly jumper if the absolute values of
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 n-1.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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