-er -ic bbb bbc bbe bbf bbh bbi bbo bbr bbs bcb bcc bce bcf bch bci bco bcr bcs be- beb bec bee bef beh bei beo ber bes bfb bfc bfe bff bfh bfi bfo bfr bfs bhb bhc bhe bhf bhh bhi bho bhr bhs bi- bib bic bie bif bih bii bio bir bis bob boc boe bof boh boi boo bor bos brb bre brf brh bri bro brr brs bsb bsc bse bsf bsh bsi bso bsr bss c-- cbb cbc cbe cbf cbh cbi cbo cbr cbs ccb ccc cce ccf cch cci cco ccr ccs ce- ceb cec cee cef ceh cei ceo cer ces cfb cfc cfe cff cfh cfi cfo cfr cfs ch- chb chc che chf chh chi cho chr chs ci- cib cic cie cif cih cii cio cir cis co- cob coc coe cof coh coi coo cor cos crb crc cre crf crh cri cro crr crs csb csc cse csf csh csi cso csr css ebb ebc ebe ebf ebh ebi ebo ebr ebs ec- ecb ecc ece ecf ech eci eco ecr ecs eeb eec eee eef eeo eer ees ef- efb efc efe eff efh efi efo efr efs ehb ehc ehe ehf ehh ehi eho ehr ehs eib eic eie eif eii eio eir eis eo- eob eoc eoe eof eoh eoi eoo eor eos erb erc ere erf erh eri ero err ers es- esb esc ese esf esh esi eso esr ess fbb fbc fbe fbf fbh fbi fbo fbr fbs fcb fcc fce fcf fci fco fcr fcs feb fec fee fef feh fei feo fer fes ffc ffe fff ffh ffi ffo ffr ffs fhb fhc fhe fhf fhh fhi fho fhr fhs fib fic fie fif fih fii fir fis fob foc foe fof foh foi foo for fos frb frc fre frf frh fri fro frr frs fsb fsc fse fsf fsh fsi fso fsr fss h-i hbb hbc hbe hbf hbh hbi hbo hbr hbs hcb hcc hce hcf hch hci hco hcr hcs he- heb hec hee hef heh hei heo her hes hfb hfc hfe hff hfh hfi hfo hfr hfs hhb hhc hhe hhf hhh hhi hho hhr hhs hib hic hie hif hih hii hio hir his hob hoc hoe hof hoh hoi hoo hor hos hr- hrb hrc hre hrf hrh hri hro hrr hrs hsb hsc hse hsf hsh hsi hsr hss i-f ibb ibc ibe ibf ibh ibi ibo ibr ibs icb icc ice icf ich ici ico icr ics ie- iec iee ief iei ier ies ifb ifc ife iff ifi ifo ifr ifs ihb ihc ihe ihf ihh ihi iho ihr ihs iib iic iie iif iih iii iio iir iis io- iob ioc ioe iof ioh ioi ioo ior ios ir- irb irc ire irf iri iro irr irs is- isb isc ise isf ish isi iso isr iss o-i ob- obb obc obe obf obh obi obo obr obs oc- ocb occ ocf och oci oco ocr ocs oeb oec oee oef oeh oei oeo oer oes of- ofb ofc ofe off ofi ofo ofr ofs ohc ohe ohf ohh ohi oho ohr ohs oib oic oie oif oii oio oir ois oo- oob ooc oof ooh ooi ooo oor oos or- orb orc ore orf orh ori oro orr ors os- osb osc ose osf osh osi oso osr oss rbb rbc rbe rbf rbh rbi rbo rbr rbs rcb rcc rce rcf rch rci rco rcr rcs re- reb rec ree ref reh rei reo rer res rfb rfc rfe rff rfh rfi rfo rfr rfs rh- rhb rhc rhe rhf rhh rhi rho rhr rhs rib ric rie rif rih rii rio rir ris rob roc roe rof roh roi roo ror ros rrb rrc rrf rrh rri rrr rrs rsb rsc rse rsf rsh rsi rso rsr rss sbb sbc sbe sbf sbh sbi sbo sbr sbs scb scc sce scf sch sci sco scr scs se- seb sec see sef seh sei seo ser ses sfb sfc sfe sff sfh sfi sfo sfr sfs sh- shb shc she shf shh shi sho shr shs sib sic sie sif sih sii sio sir sis sob soc soe sof soh soi soo sor sos sr- srb src sre srf srh sri sro srr srs ss- ssb ssc sse ssf ssh ssi sso ssr sss

-ose bbbb bbbs bbch bbci bbeb bbfc bbhs bbrc bcbc bcbs bccc bcci bccs bcec bcer bces bcfc bche bchs bcie bcis bcof bcor bcos bcrs bcsc bcss bebb bebe bebi bebo bech beci becs beeb beef beer bees befe beff befo behr behs beic beir beis beo- beof beor beos berc bere beri bero berr bers bes- bese besh beso bess bfcs bffs bfhs bfsi bfsr bhcc bher bhff bhhs bhie bhir bhoi bhor bhsf bibb bibe bibi bibo bibs bicc bice bich bici bico bics bieb bief bier bies biff bifi bihe bihi bihs biis bio- bioc bioi bios birb bire biri biro birr birs bis- bisc bise bish biso biss bobb bobe bobi bobo bobs boce boch boco bocs boec boee boef boeo boer boes bofe boff bofh bofs boho bohr bohs boi- boie boii bois boob booc booe boof booh boor boos bor- bore borf borh bori boro borr bors bosc bose bosh bosi boso boss brcb brce breb brec bree bref brei breo brer bres brfc brhs bric brie brih brio bris brob broc broe broh broo bror bros brrr brrs brsb brsr bsci bscs bseb bsec bsee bser bses bsfc bsff bsfs bshs bsic bsos bssc bsse c-bo cbbc cbbs cbcc cbce cbcr cbcs cbec cbee cbef cber cbfb cbfc cbhs cbir cbre cbrh cbsc cbse cbsi ccbc cccb cccc cccf ccci cccs ccee ccfc ccff ccfi cche cchr cchs ccic ccii ccir ccis ccob ccoc ccrc ccre ccrf ccri ccrs ccsf ccsi ccss cebs cec- cece ceci ceco cecs ceeb