-er -ic b-u bbb bbc bbe bbi bbn bbo bbr bbt bbu bcb bcc bce bci bcn bco bcr bct bcu bcv be- beb bec bee bei ben beo ber bet beu bev bi- bib bic bie bii bin bio bir bit biu biv bnb bnc bne bni bnn bno bnr bnt bnu bnv bob boc boe boi bon boo bor bot bou bov brb bre bri brn bro brr brt bru brv btb btc bte bti btn bto btr btt btu btv bub buc bue bui bun buo bur but buu bvb bvc bve bvi bvn bvo bvr bvt bvu bvv c-- cbb cbc cbe cbi cbn cbo cbr cbt cbu cbv ccb ccc cce cci ccn cco ccr cct ccu ccv ce- ceb cec cee cei cen ceo cer cet ceu cev ci- cib cic cie cii cin cio cir cit ciu civ cn- cnb cnc cne cni cnn cno cnr cnt cnu cnv co- cob coc coe coi con coo cor cot cou cov crb crc cre cri crn cro crr crt cru crv ctb ctc cte cti ctn cto ctr ctt ctu ctv cub cuc cue cui cun cuo cur cut cuu cuv cvb cvc cve cvi cvn cvo cvr cvt cvu cvv ebb ebc ebe ebi ebn ebo ebr ebt ebu ebv ec- ecb ecc ece eci ecn eco ecr ect ecu ecv eeb eec eee een eeo eer eet eev eib eic eie eii ein eio eir eit eiu eiv en- enb enc ene eni enn eno enr ent enu env eo- eob eoc eoe eoi eon eoo eor eot eou erb erc ere eri ern ero err ert eru erv etb etc ete eti etn eto etr ett etu etv eu- eub euc eue eui eun eur eut euv evb evc eve evi evn evo evr evt evv i-v ibb ibc ibe ibi ibn ibo ibr ibt ibu ibv icb icc ice ici icn ico icr ict icu icv ie- iec iee iei ien ier iet iev iib iic iie iii iin iio iir iit iiu in- inb inc ine ini inn ino inr int inu inv io- iob ioc ioe ioi ion ioo ior iot iou iov ir- irb irc ire iri irn iro irr irt iru irv itb itc ite iti itn ito itt itu itv iu- iub iuc iue iui iur iut ivb ivc ive ivi ivo ivr ivt ivu ivv n-i nbb nbc nbe nbi nbn nbo nbr nbt nbu nbv ncb ncc nce nci ncn nco ncr nct ncu ncv ne- neb nec nee nei nen neo ner net neu nev nib nic nie nii nin nio nir nit niu niv nnb nnc nne nni nnn nno nnt nnu nnv no- nob noc noe noi non noo nor not nou nov nrb nrc nre nri nrn nro nrr nrt nru nrv ntb ntc nte nti ntn nto ntr ntt ntu ntv nub nuc nue nui nun nuo nur nut nuu nuv nvb nvc nve nvi nvn nvt nvu nvv o-i ob- obb obc obe obi obn obo obr obt obu obv oc- ocb occ oci ocn oco ocr oct ocu ocv oeb oec oee oei oen oeo oer oet oib oic oie oii oin oio oir oit oiu oiv on- onb onc one oni onn ono onr ont onu oo- oob ooc ooi oon ooo oor oot oov or- orb orc ore ori orn oro orr ort oru orv ot- otb otc ote oti otn oto otr ott otu otv ou- ouc oue oui oun ouo our out ov- ovb ovc ove ovi ovo ovv rbb rbc rbe rbi rbn rbo rbr rbt rbu rcb rcc rce rci rcn rco rcr rct rcu rcv re- reb rec ree rei ren reo rer ret reu rev rib ric rie rii rin rio rir rit riv rnb rnc rni rnn rno rnr rnt rnu rnv rob roc roe roi ron roo ror rot rou rov rrb rrc rri rrn rrr rrt rru rtb rtc rte rti rtn rto rtr rtt rtu rtv rub ruc rue rui run ruo rur rut ruu ruv rvb rvc rve rvi rvn rvo rvr rvt rvu rvv tbb tbc tbe tbi tbn tbo tbr tbt tbu tbv tcb tcc tce tci tcn tco tcr tct tcu tcv te- teb tec tee tei ten teo ter tet teu tev tib tic tie tii tin tio tir tit tiu tiv tnb tnc tne tni tnn tno tnr tnt to- tob toc toe toi ton too tor tot tou tov trb trc tre tri trn tro trr trt tru trv ttb ttc tte tti ttn tto ttr ttt ttu ttv tub tuc tue tui tun tuo tur tut tuu tuv tvb tvc tve tvi tvn tvo tvr tvt tvu ubb ubc ube ubi ubn ubo ubr ubt ubu ubv ucb ucc uce uci ucn uco ucr uct ucu ucv ueb uec uee uei uen uer uet uib uic uie uii uin uio uir uit uiu un- unb unc une uni unn uno unr unt unu unv uob uoc uoe uon uoo uor uot ur- urb urc ure uri urn uro urr urt uru utb utc ute uti utn uto utr utt utu utv uuc uue uun uur uut uuu uvb uvc uve uvo uvu uvv v-e vbc vbi vbo vbr vbv vcc vce vci vcn vco vcr vct vcu veb vec vee vei ven veo ver vet veu vi- vib vic vie vii vin vio vir vit viu viv vn- vni vno vnr vnu vnv vob voc voe voi von voo vor vot vou vov vrb vrc vre vri vrn vrr vrt vru vtb vtc vte vti vto vtr vtt vtu vtv vue vur vut vuv vvb vvc vvi vvo vvr vvt vvv