import std.stdio;
	import std.algorithm;
	import std.math;
	import std.conv;
	import std.string;
	import std.range;
	import std.array;
 
	void main()
	{
		foreach(line; stdin.byLine)
		{
			int[] numbers = line.strip.splitter.map!(to!int).array;
			int[] seq;
			foreach(i; 0 .. numbers.length - 1)
				seq ~= abs(numbers[i + 1] - numbers[i]);
			bool ok = iota(1, numbers.length - 1).all!(n => seq.canFind(n));
			writeln(line, ok ? " JOLLY" : " NOT JOLLY");
		}
	}

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4 1 4 2 3
	5 1 4 2 -1 6
	4 19 22 24 21
	4 19 22 24 25
	4 2 -1 0 2