-er b-u bbb bbc bbd bbe bbh bbk bbn bbo bbr bbs bbu bcb bcc bcd bce bch bck bcn bco bcr bcs bcu bdb bdc bdd bde bdh bdk bdo bdr bds bdu be- beb bec bed bee beh bek ben beo ber bes beu bhb bhc bhd bhe bhh bhk bho bhr bhs bhu bkb bkc bke bkk bkn bko bkr bks bnb bnc bnd bne bnk bnn bno bnr bns bnu bob boc bod boe boh bok bon boo bor bos bou brb brd bre brh brk brn bro brr brs bru bsb bsc bsd bse bsh bsk bsn bso bsr bss bsu bub buc bud bue buh buk bun buo bur bus buu c-- cbb cbc cbd cbe cbh cbk cbn cbo cbr cbs cbu ccb ccc ccd cce cch cck ccn cco ccr ccs ccu cdb cdc cdd cde cdh cdk cdn cdo cdr cds cdu ce- ceb cec ced cee ceh cek cen ceo cer ces ceu ch- chb chc chd che chh chk chn cho chr chs chu ckb ckc ckd ckh cko cks cn- cnb cnc cnd cne cnh cnn cno cnr cns cnu co- cob coc cod coe coh cok con coo cor cos cou crb crc crd cre crh crk crn cro crr crs cru csb csc csd cse csh csk csn cso csr css csu cub cuc cud cue cuh cuk cun cuo cur cus cuu dbb dbc dbd dbe dbh dbk dbn dbo dbr dbs dbu dcb dcc dcd dce dck dcn dco dcr dcs dcu ddb ddc ddd dde ddh ddk ddn ddo ddr dds ddu de- deb dec ded dee deh dek den deo der des deu dh- dhb dhc dhd dhe dhh dhk dho dhr dhs dhu dkb dkc dke dkk dko dkr dks dku dnb dnc dnd dne dnh dnk dnn dno dnr dns dob doc dod doe doh dok don doo dor dos dou drb drc drd dre drk drn dro drr drs dru dsb dsc dsd dse dsh dsk dsn dso dsr dss dsu dub duc dud due duh duk dun duo dur dus ebb ebc ebd ebe ebh ebk ebn ebo ebr ebs ebu ec- ecb ecc ecd ece ech eck ecn eco ecr ecs ecu ed- edb edc edd ede edh edk edn edo edr eds edu eeb eec eed eee eek een eeo eer ees ehb ehc ehd ehe ehh ehn eho ehr ehs ehu ekb ekc ekd eke ekh eko ekr eks eku en- enb enc end ene enh enk enn eno enr ens enu eo- eob eoc eod eoe eoh eok eon eoo eor eos eou erb erc erd ere erh erk ern ero err ers eru es- esb esc esd ese esh esk esn eso esr ess esu eu- eub euc eud eue eun eur eus hbb hbc hbd hbe hbh hbk hbn hbo hbr hbs hbu hcb hcc hcd hce hch hck hcn hco hcr hcs hdb hdc hdd hde hdh hdk hdn hdo hdr hds hdu he- heb hec hed hee heh hek hen heo her hes heu hhb hhc hhd hhe hhh hhk hhn hho hhr hhs hhu hkb hkd hkh hkk hkn hko hkr hks hku hnb hnc hnd hne hnh hnk hnn hno hns hnu hob hoc hod hoe hoh hok hon hoo hor hos hou hr- hrb hrc hrd hre hrh hrk hrn hro hrr hrs hru hsb hsc hsd hse hsh hsk hsn hsr hss hsu hub huc hud hue huh huk hun huo hur hus huu kbb kbc kbd kbe kbh kbk kbn kbo kbr kbs kbu kcb kcc kcd kce kch kck kcn kcr kcs kcu kdb kdc kde kdh kdk kdo kdr kds kdu ke- keb kec ked kee keh kek ken keo ker kes khe khh khk khn kho khr khs khu kkb kkc kke kkh kkk kkn kkr kks kku kn- knc knd kne knk knn kno knr knu kob koc kod koe koh kok kon koo kor kos kou krc krd krk krn kro krr krs kru ksb ksc ksd kse ksh ksk ksn kso ksr kss ksu kub kuc kud kue kuh kuk kun kur kus kuu nbb nbc nbd nbe nbk nbn nbo nbr nbs nbu ncb ncc ncd nce nch nck ncn nco ncr ncs ncu ndb ndc ndd nde ndh ndk ndn ndo ndr nds ndu ne- neb nec ned nee neh nek nen neo ner nes neu nhb nhc nhd nhe nhh nhk nhn nhr nhs nhu nkc nke nkk nkn nko nkr nks nku nnb nnc nne nnh nnk nnn nno nns nnu no- nob noc nod noe noh nok non noo nor nos nou nrb nrc nrd nre nrk nrn nro nrr nrs nru nsb nsc nsd nse nsh nsk nsn nso nsr nss nsu nub nuc nud nue nuh nuk nun nuo nur nus nuu ob- obb obc obd obe obh obk obn obo obr obs obu oc- ocb occ ocd och ock ocn oco ocr ocs ocu odb odc odd ode odh odn odo odr ods odu oeb oec oed oee oeh oen oeo oer oes ohc ohd ohe ohh ohn oho ohr ohs ohu okb okc okd oke okk oko okr oks oku on- onb onc ond one onh onk onn ono onr ons onu oo- oob ooc ood ooh ook oon ooo oor oos or- orb orc ord ore orh ork orn oro orr ors oru os- osb osc osd ose osh osk osn oso osr oss osu ou- ouc oud oue ouh ouk oun ouo our ous rbb rbc rbd rbe rbh rbk rbn rbo rbr rbs rbu rcb rcc rcd rce rch rcn rco rcr rcs rcu rdb rdc rdd rde rdh rdn rdo rdr rds rdu re- reb rec red ree reh rek ren reo rer res reu rh- rhb rhc rhd rhe rhh rhn rho rhr rhs rhu rkb rkc rke rkk rko rks rku rnb rnc rnd rnh rnn rno rnr rns rnu rob roc rod roe