-ic b-u bbb bbc bbi bbm bbn bbo bbr bbu bcb bcc bci bcm bcn bco bcr bcu bi- bib bic bii bim bin bio bir biu bmb bmc bmi bmm bmn bmo bmr bmu bnb bnc bni bnn bno bnr bnu bob boc boi bom bon boo bor bou brb bri brm brn bro brr bru bub buc bui bum bun buo bur buu c-- cbb cbc cbi cbm cbn cbo cbr cbu ccb ccc cci ccm ccn cco ccr ccu ci- cib cic cii cim cin cio cir ciu cmb cmc cmi cmm cmn cmo cmr cmu cn- cnb cnc cni cnm cnn cno cnr cnu co- cob coc coi com con coo cor cou crb crc cri crm crn cro crr cru cub cuc cui cum cun cuo cur cuu ibb ibc ibi ibm ibn ibo ibr ibu icb icc ici icm icn ico icr icu iib iic iii iim iin iio iir iiu im- imb imc imi imm imn imo imu in- inb inc ini inm inn ino inr inu io- iob ioc ioi iom ion ioo ior iou ir- irb irc iri irm irn iro irr iru iu- iub iuc iui ium iur m-o m-r mbb mbc mbi mbm mbo mbr mbu mc- mcb mcc mci mcm mcn mco mcr mcu mi- mib mic mii mim min mio mir miu mmb mmc mmi mmm mmn mmo mmr mmu mnb mnc mni mnm mnn mno mnr mnu mob moc moi mom mon moo mor mou mrb mrc mri mrm mrn mro mrr mru mub muc mui mum mun mur muu n-i nbb nbc nbi nbm nbn nbo nbr nbu ncb ncc nci ncm ncn nco ncr ncu nib nic nii nim nin nio nir niu nmb nmc nmi nmm nmn nmo nmr nmu nnb nnc nni nnm nnn nno nnu no- nob noc noi nom non noo nor nou nrb nrc nri nrm nrn nro nrr nru nub nuc nui num nun nuo nur nuu o-i ob- obb obc obi obm obn obo obr obu oc- ocb occ oci ocm ocn oco ocr ocu oib oic oii oim oin oio oir oiu om- omb omc omi omm omn omo omr omu on- onb onc oni onn ono onr onu oo- oob ooc ooi oom oon ooo oor or- orb orc ori orm orn oro orr oru ou- ouc oui oum oun ouo our rbb rbc rbi rbm rbn rbo rbr rbu rcb rcc rci rcm rcn rco rcr rcu rib ric rii rim rin rio rir rmb rmc rmi rmm rmn rmo rmr rnb rnc rni rnm rnn rno rnr rnu rob roc roi rom ron roo ror rou rrb rrc rri rrm rrn rrr rru rub ruc rui rum run ruo rur ruu ubb ubc ubi ubn ubo ubr ubu ucb ucc uci ucm ucn uco ucr ucu uib uic uii uim uin uio uir uiu um- umb umc umi umm umn umo umr umu un- unb unc uni unm unn uno unr unu uob uoc uom uon uoo uor ur- urb urc uri urm urn uro urr uru uuc uum uun uur uuu