-ic b-u bbb bbc bbh bbi bbn bbo bbu bcb bcc bch bci bcn bco bcu bhb bhc bhh bhi bho bhu bi- bib bic bih bii bin bio biu bnb bnc bni bnn bno bnu bob boc boh boi bon boo bou bub buc buh bui bun buo buu c-- cbb cbc cbh cbi cbn cbo cbu ccb ccc cch cci ccn cco ccu ch- chb chc chh chi chn cho chu ci- cib cic cih cii cin cio ciu cn- cnb cnc cnh cni cnn cno cnu co- cob coc coh coi con coo cou cub cuc cuh cui cun cuo cuu h-i hbb hbc hbh hbi hbn hbo hbu hcb hcc hch hci hcn hco hhb hhc hhh hhi hhn hho hhu hib hic hih hii hin hio hiu hnb hnc hnh hnn hno hnu hob hoc hoh hoi hon hoo hou hub huc huh hui hun huo huu ibb ibc ibh ibi ibn ibo ibu icb icc ich ici icn ico icu ihb ihc ihh ihi ihn iho ihu iib iic iih iii iin iio iiu in- inb inc inh ini inn ino inu io- iob ioc ioh ioi ion ioo iou iu- iub iuc iui n-i nbb nbc nbi nbn nbo nbu ncb ncc nch nci ncn nco ncu nhb nhc nhh nhi nhn nhu nib nic nih nii nin nio niu nnb nnc nnh nni nnn nno nnu no- nob noc noh noi non noo nou nub nuc nuh nui nun nuo nuu o-i ob- obb obc obh obi obn obo obu oc- ocb occ och oci ocn oco ocu ohc ohh ohi ohn oho ohu oib oic oii oin oio oiu on- onb onc onh oni onn ono onu oo- oob ooc ooh ooi oon ooo ou- ouc ouh oui oun ouo ubb ubc ubh ubi ubn ubo ubu ucb ucc uch uci ucn uco ucu uhb uhc uhh uhi uho uhu uib uic uii uin uio uiu un- unb unc unh uni unn uno unu uob uoc uon uoo uuc uun uuu