public static void Main(string[] args)
{
TennisGame game = new TennisGame("GZ", "CNN");
game.FirstPlayerScore();
game.Score();
game.SecondPlayerScore();
game.Score();
game.FirstPlayerScore();
game.FirstPlayerScore();
game.SecondPlayerScore();
game.SecondPlayerScore();
game.Score();
game.SecondPlayerScore();
game.Score();
game.SecondPlayerScore();
game.Score();
}