public static String counterGame(long n) {
        
        final String LOUISE = "Louise";
        final String RICHARD = "Richard";
        boolean isLouiseTurn = true;
        int maxClosePower;
        long poweredNumber;
        long counter = n;
        
        if (counter == 1) {
            return RICHARD;
        }
         
        while (counter > 1) {
            maxClosePower = (int)(Math.log(counter) / Math.log(2));
            poweredNumber = (long) Math.pow(2, maxClosePower);
            
            if (poweredNumber == counter) {
                counter /= 2;
            } else if (counter > poweredNumber) {
                counter -= poweredNumber;
            }
            
            isLouiseTurn = !isLouiseTurn;
        }
        
        return isLouiseTurn ? RICHARD : LOUISE;
    }