public static void Test()
{
Solution s = new Solution();
//Console.WriteLine(s.NumPoints());
Console.WriteLine(s.CountGoodTriplets(new int[] { 1, 7, 4, 5, 2, 0 }, 2, 5, 6));
Console.WriteLine(s.CountGoodTriplets(new int[] { 3, 0, 1, 1, 9, 7 }, 7, 2, 3));
Console.WriteLine(s.CountGoodTriplets(new int[] { 1, 1, 2, 2, 3 }, 0, 0, 1));
}