public static long strangeCounter(long t) {
    // Write your code here
        //3*2^0 + 3 * 2^1 + 3*2^n
        long x = 0L;
        long i = 0L;
        long s = 0L;
        long k = 1L;
        while(x < t){
            x = (long)(3 * Math.pow(2,i));
            k += x;
            if(k > t) {
                s = k - t;
                break;
            } 
            i++;
        }
        return s;
    }