About Bonus: Spring / Summer / Autumn / Winter / Plum / Orchid / Chrysanthemum / Bamboo are represented by 1h2h3h4h5h6h7h8h or 1f2f3f4f5f6f7f8f in order. Some mahjong rules consider bonus as joker. This calculator does not have this function. Please convert them into joker if necessary.