8. A deck of playing cards has a total of 54 cards, including 2 jokers, and 13 cards of each of the four suits: spades, hearts, clubs, and diamonds. If you randomly draw some cards from the deck, to ensure that the drawn cards include at least two suits, and that each of these suits has at least 6 cards, what is the minimum number of cards you need to draw? $\qquad$
$31$