-pub const NUM_RANKS: u8 = 13;
-pub const NUM_SUITS: u8 = 4;
-pub const NUM_JOKERS: u8 = 2;
-pub const NUM_CARDS: u8 = NUM_RANKS * NUM_SUITS + NUM_JOKERS;
+pub const NUM_RANKS: usize = 13;
+pub const NUM_SUITS: usize = 4;
+pub const NUM_JOKERS: usize = 2;
+pub const NUM_CARDS: usize = NUM_RANKS * NUM_SUITS + NUM_JOKERS;