Theater is the most ancient art, since ancient times in ancient Rome there were buildings in the form of circular arenas surrounded by stone seats, going up in the form of stairs. Such buildings were called the amphitheater and there were not only civilized theatrical performances, but also barbaric gladiatorial fights. Our amphitheater in the game Ancient Theater is built of mahjong tiles with images printed on them, which, by the way, you can change at any stage of the game. Your task is to remove all elements from the playing field by opening access to an interesting picture. Look for identical pairs and delete.