-er -ic b-u bbb bbc bbe bbg bbi bbn bbo bbr bbs bbu bcb bcc bce bcg bci bcn bco bcr bcs bcu bcv be- beb bec bee beg bei ben beo ber bes beu bev bgb bgc bge bgg bgi bgn bgo bgr bgs bgu bgv bi- bib bic bie big bii bin bio bir bis biu biv bnb bnc bne bng bni bnn bno bnr bns bnu bnv bob boc boe bog boi bon boo bor bos bou bov brb bre brg bri brn bro brr brs bru brv bsb bsc bse bsg bsi bsn bso bsr bss bsu bsv bub buc bue bug bui bun buo bur bus buu bvb bvc bve bvg bvi bvn bvo bvr bvs bvu bvv c-- cbb cbc cbe cbg cbi cbn cbo cbr cbs cbu cbv ccb ccc cce ccg cci ccn cco ccr ccs ccu ccv ce- ceb cec cee ceg cei cen ceo cer ces ceu cev cgb cgc cge cgg cgi cgn cgo cgr cgs cgu cgv ci- cib cic cie cig cii cin cio cir cis ciu civ cn- cnb cnc cne cng cni cnn cno cnr cns cnu cnv co- cob coc coe cog coi con coo cor cos cou cov crb crc cre crg cri crn cro crr crs cru crv csb csc cse csg csi csn cso csr css csu csv cub cuc cue cug cui cun cuo cur cus cuu cuv cvb cvc cve cvg cvi cvn cvo cvr cvs cvu cvv ebb ebc ebe ebg ebi ebn ebo ebr ebs ebu ebv ec- ecb ecc ece ecg eci ecn eco ecr ecs ecu ecv eeb eec eee eeg een eeo eer ees eev egb egc ege egg egi egn ego egr egs egu eib eic eie eig eii ein eio eir eis eiu eiv en- enb enc ene eng eni enn eno enr ens enu env eo- eob eoc eoe eog eoi eon eoo eor eos eou erb erc ere erg eri ern ero err ers eru erv es- esb esc ese esg esi esn eso esr ess esu esv eu- eub euc eue eug eui eun eur eus euv evb evc eve evg evi evn evo evr evs evv gbc gbe gbg gbi gbn gbo gbr gbs gbu gbv gcb gcc gce gcg gci gcn gco gcr gcs gcu ge- geb gec gee geg gei gen geo ger ges geu gev ggb ggc ggg ggi ggn ggo ggr ggs ggu ggv gib gic gie gig gii gin gio gir gis giu giv gnb gnc gne gni gnn gno gnr gns gnu gnv gob goc goe gog goi gon goo gor gos gou gov grb grc gre grg gri grn gro grr grs gru grv gsb gsc gse gsg gsi gsn gso gsr gss gsu gsv gu- gub guc gue gug gui gun guo gur gus guu guv gvb gvc gve gvg gvi gvn gvo gvr gvs gvu i-v ibb ibc ibe ibg ibi ibn ibo ibr ibs ibu ibv icb icc ice icg ici icn ico icr ics icu icv ie- iec iee ieg iei ien ier ies iev igb igc ige igg igi ign igo igr igs igu iib iic iie iii iin iio iir iis iiu in- inb inc ine ing ini inn ino inr ins inu inv io- iob ioc ioe iog ioi ion ioo ior ios iou iov ir- irb irc ire irg iri irn iro irr irs iru irv is- isb isc ise isg isi isn iso isr iss isu isv iu- iub iuc iue iug iui iur ius ivb ivc ive ivg ivi ivo ivr ivs ivu ivv n-i nbb nbc nbe nbg nbi nbn nbo nbr nbs nbu nbv ncb ncc nce ncg nci ncn nco ncr ncs ncu ncv ne- neb nec nee neg nei nen neo ner nes neu nev ngb ngc nge ngg ngi ngn ngo ngs ngu nib nic nie nig nii nin nio nir nis niu niv nnb nnc nne nng nni nnn nno nns nnu nnv no- nob noc noe nog noi non noo nor nos nou nov nrb nrc nre nrg nri nrn nro nrr nrs nru nrv nsb nsc nse nsg nsi nsn nso nsr nss nsu nsv nub nuc nue nug nui nun nuo nur nus nuu nuv nvb nvc nve nvg nvi nvn nvu nvv o-i ob- obb obc obe obg obi obn obo obr obs obu obv oc- ocb occ ocg oci ocn oco ocr ocs ocu ocv oeb oec oee oeg oei oen oeo oer oes ogc oge ogg ogi ogn ogo ogs oib oic oie oii oin oio oir ois oiu oiv on- onb onc one ong oni onn ono onr ons onu oo- oob ooc oog ooi oon ooo oor oos oov or- orb orc ore org ori orn oro orr ors oru orv os- osb osc ose osg osi osn oso osr oss osu osv ou- ouc oue oui oun ouo our ous ov- ovb ovc ove ovi ovo ovs ovv rbb rbc rbe rbg rbi rbn rbo rbr rbs rbu rcb rcc rce rcg rci rcn rco rcr rcs rcu rcv re- reb rec ree reg rei ren reo rer res reu rev rgb rgc rge rgg rgi rgn rgo rgr rgs rgv rib ric rie rig rii rin rio rir ris riv rnb rnc rng rni rnn rno rnr rns rnu rnv rob roc roe rog roi ron roo ror ros rou rov rrb rrc rrg rri rrn rrr rrs rru rsb rsc rse rsg rsi rsn rso rsr rss rsu rsv rub ruc rue rug rui run ruo rur rus ruu ruv rvb rvc rve rvg rvi rvn rvo rvr rvs rvu rvv sbb sbc sbe sbg sbi sbn sbo sbr sbs sbu sbv scb scc sce scg sci scn sco scr scs scu scv se- seb sec see seg sei sen seo ser ses seu sev sgb sgc sge sgg sgi sgn sgo sgr sgs sgu sgv sib sic sie sig sii sin sio sir