-ic bbb bbc bbh bbi bbn bbo bcb bcc bch bci bcn bco bhb bhc bhh bhi bho bi- bib bic bih bii bin bio bnb bnc bni bnn bno bob boc boh boi bon boo c-- cbb cbc cbh cbi cbn cbo ccb ccc cch cci ccn cco ch- chb chc chh chi chn cho ci- cib cic cih cii cin cio cn- cnb cnc cnh cni cnn cno co- cob coc coh coi con coo h-i hbb hbc hbh hbi hbn hbo hcb hcc hch hci hcn hco hhb hhc hhh hhi hhn hho hib hic hih hii hin hio hnb hnc hnh hnn hno hob hoc hoh hoi hon hoo ibb ibc ibh ibi ibn ibo icb icc ich ici icn ico ihb ihc ihh ihi ihn iho iib iic iih iii iin iio in- inb inc inh ini inn ino io- iob ioc ioh ioi ion ioo n-i nbb nbc nbi nbn nbo ncb ncc nch nci ncn nco nhb nhc nhh nhi nhn nib nic nih nii nin nio nnb nnc nnh nni nnn nno no- nob noc noh noi non noo o-i ob- obb obc obh obi obn obo oc- ocb occ och oci ocn oco ohc ohh ohi ohn oho oib oic oii oin oio on- onb onc onh oni onn ono oo- oob ooc ooh ooi oon ooo