Dogs of Cards In History

Four dogs (Spike, Chilla, Bobi and Bluey) are playing poker on the table. A cat is the server. Spike said, "Whoever wins this game will be the master for one whole week." Chilla grinning at Spike, "You are already twenty three, but you can still serve me for a week." Bobi averred, "I am the oldest, I should win this game." Bluey is silent, concentrating... Spike laid his cards, showing a Full House. Chilla laid his... a Royal Flush of Hearts. Bobi showed his... a Queen and four Aces. Bluey revealed his... a Royal Flush of Hearts too. Spike and Bobi complained, "How did you two get the same suit of Royal Flush???!!!" The players looked at the shuffler. The cat said, "I shuffled two decks of cards. I want everybody to win so I don't have to serve forever."