class Solution {
    public int countGoodTriplets(int[] arr, int a, int b, int c) {
        int n = arr.length, ct = 0;
        for (int i = 0; i < n - 2; i++)
            for (int j = i + 1; j < n - 1; j++) {
                if (Math.abs(arr[i] - arr[j]) > a)
                    continue;
                for (int k = j + 1; k < n; k++)
                    if (Math.abs(arr[j] - arr[k]) <= b && Math.abs(arr[i] - arr[k]) <= c)
                        ct++;
            }
        return ct;
    }
}