bt9b1 at9b 9s9b1h 8s9b1 7s9b

m28b l28b1h k28b1 j28b i28b1h

xb8b1h wb8b1 vb8b ub8b1h tb8b1

8k7b1 7k7b 6k7b1h 5k7b1 4k7b

ju6b iu6b1h hu6b1 gu6b fu6b1h