-er -ic bbb bbc bbe bbf bbg bbh bbi bbr bbs bcb bcc bce bcf bcg bch bci bcr bcs be- beb bec bee bef beg beh bei ber bes bfb bfc bfe bff bfg bfh bfi bfr bfs bgb bgc bge bgf bgg bgh bgi bgr bgs bhb bhc bhe bhf bhg bhh bhi bhr bhs bi- bib bic bie bif big bih bii bir bis brb bre brf brg brh bri brr brs bsb bsc bse bsf bsg bsh bsi bsr bss c-- cbb cbc cbe cbf cbg cbh cbi cbr cbs ccb ccc cce ccf ccg cch cci ccr ccs ce- ceb cec cee cef ceg ceh cei cer ces cfb cfc cfe cff cfg cfh cfi cfr cfs cgb cgc cge cgg cgh cgi cgr cgs ch- chb chc che chf chg chh chi chr chs ci- cib cic cie cif cig cih cii cir cis crb crc cre crf crg crh cri crr crs csb csc cse csf csg csh csi csr css ebb ebc ebe ebf ebg ebh ebi ebr ebs ec- ecb ecc ece ecf ecg ech eci ecr ecs eeb eec eee eef eeg eer ees ef- efb efc efe eff efg efh efi efr efs egb egc ege egf egg egh egi egr egs ehb ehc ehe ehf ehg ehh ehi ehr ehs eib eic eie eif eig eii eir eis erb erc ere erf erg erh eri err ers es- esb esc ese esf esg esh esi esr ess fbb fbc fbe fbf fbg fbh fbi fbr fbs fcb fcc fce fcf fcg fci fcr fcs feb fec fee fef feg feh fei fer fes ffc ffe fff ffg ffh ffi ffr ffs fgb fgc fge fgf fgg fgh fgi fgr fgs fhb fhc fhe fhf fhg fhh fhi fhr fhs fib fic fie fif fig fih fii fir fis frb frc fre frf frg frh fri frr frs fsb fsc fse fsf fsg fsh fsi fsr fss gbc gbe gbf gbg gbh gbi gbr gbs gcb gcc gce gcf gcg gch gci gcr gcs ge- geb gec gee gef geg geh gei ger ges gfb gfc gfe gff gfh gfi gfr gfs ggb ggc ggg ggh ggi ggr ggs ghb ghc ghe ghg ghh ghi ghr ghs gib gic gie gif gig gih gii gir gis grb grc gre grf grg grh gri grr grs gsb gsc gse gsf gsg gsi gsr gss h-i hbb hbc hbe hbf hbg hbh hbi hbr hbs hcb hcc hce hcf hcg hch hci hcr hcs he- heb hec hee hef heg heh hei her hes hfb hfc hfe hff hfg hfh hfi hfr hfs hgb hgc hge hgf hgg hgh hgi hgr hgs hhb hhc hhe hhf hhg hhh hhi hhr hhs hib hic hie hif hig hih hii hir his hr- hrb hrc hre hrf hrg hrh hri hrr hrs hsb hsc hse hsf hsg hsh hsi hsr hss i-f ibb ibc ibe ibf ibg ibh ibi ibr ibs icb icc ice icf icg ich ici icr ics ie- iec iee ief ieg iei ier ies ifb ifc ife iff ifg ifi ifr ifs igb igc ige igf igg igh igi igr igs ihb ihc ihe ihf ihg ihh ihi ihr ihs iib iic iie iif iih iii iir iis ir- irb irc ire irf irg iri irr irs is- isb isc ise isf isg ish isi isr iss rbb rbc rbe rbf rbg rbh rbi rbr rbs rcb rcc rce rcf rcg rch rci rcr rcs re- reb rec ree ref reg reh rei rer res rfb rfc rfe rff rfg rfh rfi rfr rfs rgb rgc rge rgf rgg rgh rgi rgr rgs rh- rhb rhc rhe rhf rhg rhh rhi rhr rhs rib ric rie rif rig rih rii rir ris rrb rrc rrf rrg rrh rri rrr rrs rsb rsc rse rsf rsg rsh rsi rsr rss sbb sbc sbe sbf sbg sbh sbi sbr sbs scb scc sce scf scg sch sci scr scs se- seb sec see sef seg seh sei ser ses sfb sfc sfe sff sfg sfh sfi sfr sfs sgb sgc sge sgf sgg sgh sgi sgr sgs sh- shb shc she shf shg shh shi shr shs sib sic sie sif sig sih sii sir sis sr- srb src sre srf srg srh sri srr srs ss- ssb ssc sse ssf ssg ssh ssi ssr sss

bbbb bbbs bbch bbci bbeb bbfc bbhs bbrc bbrg bcbc bcbg bcbs bccc bcci bccs bcec bcer bces bcfc bcgs bche bchs bcie bcis bcrs bcsc bcss bebb bebe bebi bech beci becs beeb beef beeg beer bees befe beff begg begi begs behr behs beic beir beis berc bere berg beri berr bers bes- bese besh bess bfcs bffs bfgf bfhs bfsi bfsr bgfc bggs bghs bhcc bher bhff bhhs bhie bhir bhsf bibb bibe bibi bibs bicc bice bicg bich bici bics bieb bief bier bies biff bifi bigb bigc bige bigg bigs bihe bihi bihs biis birb bire birg biri birr birs bis- bisc bise bish biss brcb brce breb brec bree bref breg brei brer bres brfc brhs bric brie brig brih bris brrr brrs brsb brsr bsci bscs bseb bsec bsee bseg bser bses bsfc bsff bsfs bsgs bshs bsic bssc bsse cbbc cbbs cbcc cbce cbcr cbcs cbec cbee cbef cber cbfb cbfc cbgb cbhs cbir cbre cbrh cbsc cbse cbsi ccbc cccb cccc cccf ccci cccs ccee ccfc ccff ccfi ccgc ccgs cche cchr cchs ccic ccii ccir ccis ccrc ccre ccrf ccrg ccri ccrs ccsf ccsg ccsi ccss cebs cec- cece ceci cecs ceeb ceec cees cef- cefc cege cehs cer- cerc cere cerf ceri cers cesc cese cesg cesi cesr cess cfbc cfbr cfbs cfcb cfcf cfcs cffb cffr cfgs cfhs cfrb cfre cfrg cfse cfsg cfsi cgcc cgcg cger cges cgfc cggs cghs cgis cgsb cgsh cgss chce chch chci chcs cheb chec chee chef cheh cher ches chfc chfi chfr chfs chgb chge chgs