8b9em 9b9emn ac9e bc9em cc9emn
x29emn y29e z29em 029emn 129e
mtaf ntafm otafmn ptaf qtafm
bkbfm ckbfmn dkbf ekbfm fkbfmn
0acfmn 1acf 2acfm 3acfmn 4acf