Write a program to output correct score for a tennis game. Here is the summary of tennis scores:
A game is won by the first player to if the player has won at least four points in total and at least two points more than the opponent.
- The running score of each game is describe as 'Love', 'Fifteen', 'Thirty' and 'Forty' for points from zero to three.
- If at least three points is scored by both players and the scores are equal, the score is 'Deuce'.
- If at least three points is scored by both players and a player has one more point than his opponent, the score of the game is 'Advantage' for the player with more points.
- Sets and matches are out of scope. We only need to report the score for the current game.