-er -ic b-u bbb bbc bbe bbg bbi bbn bbo bbr bbs bbt bbu bcb bcc bce bcg bci bcn bco bcr bcs bct bcu be- beb bec bee beg bei ben beo ber bes bet beu bgb bgc bge bgg bgi bgn bgo bgr bgs bgt bgu bi- bib bic bie big bii bin bio bir bis bit biu bnb bnc bne bng bni bnn bno bnr bns bnt bnu bob boc boe bog boi bon boo bor bos bot bou brb bre brg bri brn bro brr brs brt bru bsb bsc bse bsg bsi bsn bso bsr bss bst bsu btb btc bte btg bti btn bto btr bts btt btu bub buc bue bug bui bun buo bur bus but buu c-- cbb cbc cbe cbg cbi cbn cbo cbr cbs cbt cbu ccb ccc cce ccg cci ccn cco ccr ccs cct ccu ce- ceb cec cee ceg cei cen ceo cer ces cet ceu cgb cgc cge cgg cgi cgn cgo cgr cgs cgt cgu ci- cib cic cie cig cii cin cio cir cis cit ciu cn- cnb cnc cne cng cni cnn cno cnr cns cnt cnu co- cob coc coe cog coi con coo cor cos cot cou crb crc cre crg cri crn cro crr crs crt cru csb csc cse csg csi csn cso csr css cst csu ctb ctc cte ctg cti ctn cto ctr cts ctt ctu cub cuc cue cug cui cun cuo cur cus cut cuu ebb ebc ebe ebg ebi ebn ebo ebr ebs ebt ebu ec- ecb ecc ece ecg eci ecn eco ecr ecs ect ecu eeb eec eee eeg een eeo eer ees eet egb egc ege egg egi egn ego egr egs egt egu eib eic eie eig eii ein eio eir eis eit eiu en- enb enc ene eng eni enn eno enr ens ent enu eo- eob eoc eoe eog eoi eon eoo eor eos eot eou erb erc ere erg eri ern ero err ers ert eru es- esb esc ese esg esi esn eso esr ess est esu etb etc ete etg eti etn eto etr ets ett etu eu- eub euc eue eug eui eun eur eus eut gbc gbe gbg gbi gbn gbo gbr gbs gbt gbu gcb gcc gce gcg gci gcn gco gcr gcs gct gcu ge- geb gec gee geg gei gen geo ger ges get geu ggb ggc ggg ggi ggn ggo ggr ggs ggt ggu gib gic gie gig gii gin gio gir gis git giu gnb gnc gne gni gnn gno gnr gns gnt gnu gob goc goe gog goi gon goo gor gos got gou grb grc gre grg gri grn gro grr grs grt gru gsb gsc gse gsg gsi gsn gso gsr gss gst gsu gtb gtc gte gtg gti gtn gto gtr gts gtt gtu gu- gub guc gue gug gui gun guo gur gus gut guu ibb ibc ibe ibg ibi ibn ibo ibr ibs ibt ibu icb icc ice icg ici icn ico icr ics ict icu ie- iec iee ieg iei ien ier ies iet igb igc ige igg igi ign igo igr igs igt igu iib iic iie iii iin iio iir iis iit iiu in- inb inc ine ing ini inn ino inr ins int inu io- iob ioc ioe iog ioi ion ioo ior ios iot iou ir- irb irc ire irg iri irn iro irr irs irt iru is- isb isc ise isg isi isn iso isr iss ist isu itb itc ite itg iti itn ito its itt itu iu- iub iuc iue iug iui iur ius iut n-i nbb nbc nbe nbg nbi nbn nbo nbr nbs nbt nbu ncb ncc nce ncg nci ncn nco ncr ncs nct ncu ne- neb nec nee neg nei nen neo ner nes net neu ngb ngc nge ngg ngi ngn ngo ngs ngt ngu nib nic nie nig nii nin nio nir nis nit niu nnb nnc nne nng nni nnn nno nns nnt nnu no- nob noc noe nog noi non noo nor nos not nou nrb nrc nre nrg nri nrn nro nrr nrs nrt nru nsb nsc nse nsg nsi nsn nso nsr nss nst nsu ntb ntc nte ntg nti ntn nto ntr nts ntt ntu nub nuc nue nug nui nun nuo nur nus nut nuu o-i ob- obb obc obe obg obi obn obo obr obs obt obu oc- ocb occ ocg oci ocn oco ocr ocs oct ocu oeb oec oee oeg oei oen oeo oer oes oet ogc oge ogg ogi ogn ogo ogs ogt oib oic oie oii oin oio oir ois oit oiu on- onb onc one ong oni onn ono onr ons ont onu oo- oob ooc oog ooi oon ooo oor oos oot or- orb orc ore org ori orn oro orr ors ort oru os- osb osc ose osg osi osn oso osr oss ost osu ot- otb otc ote otg oti otn oto otr ots ott otu ou- ouc oue oui oun ouo our ous out rbb rbc rbe rbg rbi rbn rbo rbr rbs rbt rbu rcb rcc rce rcg rci rcn rco rcr rcs rct rcu re- reb rec ree reg rei ren reo rer res ret reu rgb rgc rge rgg rgi rgn rgo rgr rgs rgt rib ric rie rig rii rin rio rir ris rit rnb rnc rng rni rnn rno rnr rns rnt rnu rob roc roe rog roi ron roo ror ros rot rou rrb rrc rrg rri rrn rrr rrs rrt rru rsb rsc rse rsg rsi rsn rso rsr rss rst rsu rtb rtc rte rtg rti rtn rto rtr rts rtt rtu rub ruc rue rug rui run ruo rur rus rut ruu sbb sbc sbe sbg sbi sbn sbo sbr sbs sbt sbu scb scc sce scg sci scn sco scr scs sct scu se- seb sec see seg sei sen seo