-ic b-u bbb bbc bbe bbi bbn bbo bbt bbu bcb bcc bce bci bcn bco bct bcu be- beb bec bee bei ben beo bet beu bi- bib bic bie bii bin bio bit biu bnb bnc bne bni bnn bno bnt bnu bob boc boe boi bon boo bot bou btb btc bte bti btn bto btt btu bub buc bue bui bun buo but buu c-- cbb cbc cbe cbi cbn cbo cbt cbu ccb ccc cce cci ccn cco cct ccu ce- ceb cec cee cei cen ceo cet ceu ci- cib cic cie cii cin cio cit ciu cn- cnb cnc cne cni cnn cno cnt cnu co- cob coc coe coi con coo cot cou ctb ctc cte cti ctn cto ctt ctu cub cuc cue cui cun cuo cut cuu ebb ebc ebe ebi ebn ebo ebt ebu ec- ecb ecc ece eci ecn eco ect ecu eeb eec eee een eeo eet eib eic eie eii ein eio eit eiu en- enb enc ene eni enn eno ent enu eo- eob eoc eoe eoi eon eoo eot eou etb etc ete eti etn eto ett etu eu- eub euc eue eui eun eut ibb ibc ibe ibi ibn ibo ibt ibu icb icc ice ici icn ico ict icu ie- iec iee iei ien iet iib iic iie iii iin iio iit iiu in- inb inc ine ini inn ino int inu io- iob ioc ioe ioi ion ioo iot iou itb itc ite iti itn ito itt itu iu- iub iuc iue iui iut n-i nbb nbc nbe nbi nbn nbo nbt nbu ncb ncc nce nci ncn nco nct ncu ne- neb nec nee nei nen neo net neu nib nic nie nii nin nio nit niu nnb nnc nne nni nnn nno nnt nnu no- nob noc noe noi non noo not nou ntb ntc nte nti ntn nto ntt ntu nub nuc nue nui nun nuo nut nuu o-i ob- obb obc obe obi obn obo obt obu oc- ocb occ oci ocn oco oct ocu oeb oec oee oei oen oeo oet oib oic oie oii oin oio oit oiu on- onb onc one oni onn ono ont onu oo- oob ooc ooi oon ooo oot ot- otb otc ote oti otn oto ott otu ou- ouc oue oui oun ouo out tbb tbc tbe tbi tbn tbo tbt tbu tcb tcc tce tci tcn tco tct tcu te- teb tec tee tei ten teo tet teu tib tic tie tii tin tio tit tiu tnb tnc tne tni tnn tno tnt to- tob toc toe toi ton too tot tou ttb ttc tte tti ttn tto ttt ttu tub tuc tue tui tun tuo tut tuu ubb ubc ube ubi ubn ubo ubt ubu ucb ucc uce uci ucn uco uct ucu ueb uec uee uei uen uet uib uic uie uii uin uio uit uiu un- unb unc une uni unn uno unt unu uob uoc uoe uon uoo uot utb utc ute uti utn uto utt utu uuc uue uun uut uuu