-ic b-u bbb bbc bbh bbi bbn bbo bbr bbu bcb bcc bch bci bcn bco bcr bcu bhb bhc bhh bhi bho bhr bhu bi- bib bic bih bii bin bio bir biu bnb bnc bni bnn bno bnr bnu bob boc boh boi bon boo bor bou brb brh bri brn bro brr bru bub buc buh bui bun buo bur buu c-- cbb cbc cbh cbi cbn cbo cbr cbu ccb ccc cch cci ccn cco ccr ccu ch- chb chc chh chi chn cho chr chu ci- cib cic cih cii cin cio cir ciu cn- cnb cnc cnh cni cnn cno cnr cnu co- cob coc coh coi con coo cor cou crb crc crh cri crn cro crr cru cub cuc cuh cui cun cuo cur cuu h-i hbb hbc hbh hbi hbn hbo hbr hbu hcb hcc hch hci hcn hco hcr hhb hhc hhh hhi hhn hho hhr hhu hib hic hih hii hin hio hir hiu hnb hnc hnh hnn hno hnu hob hoc hoh hoi hon hoo hor hou hr- hrb hrc hrh hri hrn hro hrr hru hub huc huh hui hun huo hur huu ibb ibc ibh ibi ibn ibo ibr ibu icb icc ich ici icn ico icr icu ihb ihc ihh ihi ihn iho ihr ihu iib iic iih iii iin iio iir iiu in- inb inc inh ini inn ino inr inu io- iob ioc ioh ioi ion ioo ior iou ir- irb irc iri irn iro irr iru iu- iub iuc iui iur n-i nbb nbc nbi nbn nbo nbr nbu ncb ncc nch nci ncn nco ncr ncu nhb nhc nhh nhi nhn nhr nhu nib nic nih nii nin nio nir niu nnb nnc nnh nni nnn nno nnu no- nob noc noh noi non noo nor nou nrb nrc nri nrn nro nrr nru nub nuc nuh nui nun nuo nur nuu o-i ob- obb obc obh obi obn obo obr obu oc- ocb occ och oci ocn oco ocr ocu ohc ohh ohi ohn oho ohr ohu oib oic oii oin oio oir oiu on- onb onc onh oni onn ono onr onu oo- oob ooc ooh ooi oon ooo oor or- orb orc orh ori orn oro orr oru ou- ouc ouh oui oun ouo our rbb rbc rbh rbi rbn rbo rbr rbu rcb rcc rch rci rcn rco rcr rcu rh- rhb rhc rhh rhi rhn rho rhr rhu rib ric rih rii rin rio rir rnb rnc rnh rni rnn rno rnr rnu rob roc roh roi ron roo ror rou rrb rrc rrh rri rrn rrr rru rub ruc ruh rui run ruo rur ruu ubb ubc ubh ubi ubn ubo ubr ubu ucb ucc uch uci ucn uco ucr ucu uhb uhc uhh uhi uho uhr uhu uib uic uii uin uio uir uiu un- unb unc unh uni unn uno unr unu uob uoc uon uoo uor ur- urb urc uri urn uro urr uru uuc uun uur uuu