1~10 d a c d d b c c c d 11~20 c c b c a d c d a a
21~30 c e c d a a e c b a 31~40a c a a c e b a e a
41~50 a a c e c d d d b e 51~60 c b d c b b c e a c
61~70 b e c b c c d e d a 71~80 b a a a d d b b e d
81~90 a c a c c b b b c a 99~100b a b d a b e ce d