-er -ic b-u bbb bbc bbe bbg bbh bbi bbk bbl bbr bbs bbu bcb bcc bce bcg bch bci bck bcl bcr bcs bcu be- beb bec bee beg beh bei bek bel ber bes beu bgb bgc bge bgg bgh bgi bgk bgl bgr bgs bgu bhb bhc bhe bhg bhh bhi bhk bhl bhr bhs bhu bi- bib bic bie big bih bii bik bil bir bis biu bkb bkc bke bkg bkk bkl bkr bks blb blc ble blg blh bli blk bll blr bls blu brb bre brg brh bri brk brl brr brs bru bsb bsc bse bsg bsh bsi bsk bsl bsr bss bsu bub buc bue bug buh bui buk bul bur bus buu c-- cbb cbc cbe cbg cbh cbi cbk cbl cbr cbs cbu ccb ccc cce ccg cch cci cck ccl ccr ccs ccu ce- ceb cec cee ceg ceh cei cek cel cer ces ceu cgb cgc cge cgg cgh cgi cgl cgr cgs cgu ch- chb chc che chg chh chi chk chl chr chs chu ci- cib cic cie cig cih cii cik cil cir cis ciu ckb ckc ckh cki cks cl- clb clc cle clg clh cli clk cll clr cls clu crb crc cre crg crh cri crk crl crr crs cru csb csc cse csg csh csi csk csl csr css csu cub cuc cue cug cuh cui cuk cul cur cus cuu ebb ebc ebe ebg ebh ebi ebk ebl ebr ebs ebu ec- ecb ecc ece ecg ech eci eck ecl ecr ecs ecu eeb eec eee eeg eek eel eer ees egb egc ege egg egh egi egl egr egs egu ehb ehc ehe ehg ehh ehi ehl ehr ehs ehu eib eic eie eig eii eik eil eir eis eiu ekb ekc eke ekg ekh eki ekl ekr eks eku elb elc ele elg elh eli elk ell elr els elu erb erc ere erg erh eri erk erl err ers eru es- esb esc ese esg esh esi esk esl esr ess esu eu- eub euc eue eug eui eul eur eus gbc gbe gbg gbh gbi gbk gbl gbr gbs gbu gcb gcc gce gcg gch gci gck gcl gcr gcs gcu ge- geb gec gee geg geh gei gek gel ger ges geu ggb ggc ggg ggh ggi ggr ggs ggu ghb ghc ghe ghg ghh ghi ghl ghr ghs gib gic gie gig gih gii gik gil gir gis giu gkb gkh gks glb glc gle glg glh gli glk gll glr gls glu grb grc gre grg grh gri grk grl grr grs gru gsb gsc gse gsg gsi gsk gsl gsr gss gsu gu- gub guc gue gug gui guk gul gur gus guu h-i hbb hbc hbe hbg hbh hbi hbk hbl hbr hbs hbu hcb hcc hce hcg hch hci hck hcl hcr hcs he- heb hec hee heg heh hei hek hel her hes heu hgb hgc hge hgg hgh hgi hgk hgl hgr hgs hgu hhb hhc hhe hhg hhh hhi hhk hhl hhr hhs hhu hib hic hie hig hih hii hik hil hir his hiu hkb hkg hkh hki hkk hkl hkr hks hku hlb hlc hle hlg hlh hli hll hlr hls hlu hr- hrb hrc hre hrg hrh hri hrk hrl hrr hrs hru hsb hsc hse hsg hsh hsi hsk hsl hsr hss hsu hub huc hue hug huh hui huk hul hur hus huu ibb ibc ibe ibg ibh ibi ibk ibl ibr ibs ibu icb icc ice icg ich ici ick icl icr ics icu ie- iec iee ieg iei iek iel ier ies igb igc ige igg igh igi igk igl igr igs igu ihb ihc ihe ihg ihh ihi ihk ihl ihr ihs ihu iib iic iie iih iii iil iir iis iiu ikb ikc ike iki ikk ikl ikr iks iku il- ilb ilc ile ilg ilh ili ilk ill ilr ils ilu ir- irb irc ire irg iri irk irl irr irs iru is- isb isc ise isg ish isi isk isl isr iss isu iu- iub iuc iue iug iui iur ius kbb kbc kbe kbh kbi kbk kbl kbr kbs kbu kcb kcc kce kcg kch kci kck kcl kcr kcs kcu ke- keb kec kee keg keh kei kek kel ker kes kgb kgc kgh kgi kgl kgs kgu khe khh khi khk khr khs khu kib kic kie kig kih kii kik kil kir kis kiu kkb kkc kke kkh kki kkk kkl kkr kks kku kl- klb klc klg klh kli klr kls klu krc krg kri krk krl krr krs kru ksb ksc kse ksg ksh ksi ksk ksl ksr kss ksu kub kuc kue kug kuh kui kuk kul kur kus kuu lbb lbc lbe lbg lbh lbi lbk lbl lbr lbs lbu lcb lcc lce lcg lch lci lck lcl lcr lcs lcu leb lec lee leg leh lei lek lel ler les leu lgb lgc lge lgg lgh lgi lgk lgl lgr lgs lgu lhb lhc lhh lhi lhk lhr lhs lhu lib lic lie lig lih lii lik lil lir lis liu lkb lkg lkh lkl lkr lks llb llc lle llg lli llk lll llr lls llu lrb lrc lrg lrh lri lrk lrr lrs lru lsb lsc lse lsg lsh lsi lsk lsl lsr lss lsu lub luc lue lug luh lui luk lul lur lus luu rbb rbc rbe rbg rbh rbi rbk rbl rbr rbs rbu rcb rcc rce rcg rch rci rcl rcr rcs rcu re- reb rec ree reg reh rei rek rel rer res reu rgb rgc rge rgg rgh rgi rgk rgr rgs rh- rhb rhc rhe rhg rhh rhi rhl rhr rhs rhu rib ric rie rig rih rii rik ril rir ris rkb rkc rke rkg rkk rks rku rlc rle rlg rlh rli rll rlr rls rlu rrb rrc rrg rrh rri rrk rrl rrr rrs