-er -ic -up b-p b-u bbb bbc bbe bbi bbk bbo bbp bbr bbt bbu bcb bcc bce bci bck bco bcp bcr bct bcu be- beb bec bee bei bek beo bep ber bet beu bi- bib bic bie bii bik bio bip bir bit biu bkb bkc bke bkk bko bkp bkr bkt bob boc boe boi bok boo bop bor bot bou bpb bpc bpe bpi bpo bpp bpr bpt bpu brb bre bri brk bro brp brr brt bru btb btc bte bti btk bto btp btr btt btu bub buc bue bui buk buo bup bur but buu c-- cbb cbc cbe cbi cbk cbo cbp cbr cbt cbu ccb ccc cce cci cck cco ccp ccr cct ccu ce- ceb cec cee cei cek ceo cep cer cet ceu ci- cib cic cie cii cik cio cip cir cit ciu ckb ckc cki cko ckt co- cob coc coe coi cok coo cop cor cot cou cpb cpc cpe cpi cpk cpo cpp cpr cpt cpu crb crc cre cri crk cro crp crr crt cru ctb ctc cte cti ctk cto ctp ctr ctt ctu cub cuc cue cui cuk cuo cup cur cut cuu ebb ebc ebe ebi ebk ebo ebp ebr ebt ebu ec- ecb ecc ece eci eck eco ecr ect ecu eeb eec eee eek eeo eep eer eet eib eic eie eii eik eio eip eir eit eiu ekb ekc eke eki eko ekp ekr ekt eku eo- eob eoc eoe eoi eok eoo eop eor eot eou ep- epb epc epe epi epo epp epr ept epu erb erc ere eri erk ero erp err ert eru etb etc ete eti etk eto etp etr ett etu eu- eub euc eue eui eup eur eut ibb ibc ibe ibi ibk ibo ibp ibr ibt ibu icb icc ice ici ick ico icp icr ict icu ie- iec iee iei iek iep ier iet iib iic iie iii iio iip iir iit iiu ikb ikc ike iki ikk iko ikr ikt iku io- iob ioc ioe ioi ioo iop ior iot iou ipb ipc ipe ipi ipo ipp ipr ipt ipu ir- irb irc ire iri irk iro irp irr irt iru itb itc ite iti itk ito itp itt itu iu- iub iuc iue iui iup iur iut k-t kbb kbc kbe kbi kbk kbo kbp kbr kbu kcb kcc kce kci kck kcp kcr kct kcu ke- keb kec kee kei kek keo kep ker ket kib kic kie kii kik kio kip kir kit kiu kkb kkc kke kki kkk kkp kkr kkt kku kob koc koe koi kok koo kop kor kot kou kpc kpe kpi kpk kpo kpp kpr kpt kpu krc kri krk kro krp krr krt kru ktb ktc kte ktk kto ktp ktr ktt ktu kub kuc kue kui kuk kup kur kut kuu o-i ob- obb obc obe obi obk obo obp obr obt obu oc- ocb occ oci ock oco ocp ocr oct ocu oeb oec oee oei oeo oep oer oet oib oic oie oii oik oio oip oir oit oiu okb okc oke oki okk oko okp okr oku oo- oob ooc ooi ook ooo oop oor oot op- opb opc ope opi opk opo opp opr opt or- orb orc ore ori ork oro orp orr ort oru ot- otb otc ote oti otk oto otp otr ott otu ou- ouc oue oui ouk ouo oup our out p-p pbb pbc pbe pbi pbk pbo pbp pbr pbt pbu pcb pcc pce pci pck pco pcp pcr pct pcu peb pec pee pei pek peo pep per pet peu pib pic pie pii pik pio pip pir pit piu pkb pkc pke pki pko pkp pkr pkt pku pob poc poe poi pok poo pop por pot pou ppb ppc ppe ppi ppk ppo ppp ppr ppt ppu prb prc pre pri prk pro prp prr prt pru pt- ptb ptc pte pti ptk pto ptp ptr ptt ptu pub puc pue pui puk pup pur put puu rbb rbc rbe rbi rbk rbo rbp rbr rbt rbu rcb rcc rce rci rco rcp rcr rct rcu re- reb rec ree rei rek reo rep rer ret reu rib ric rie rii rik rio rip rir rit rkb rkc rke rkk rko rkp rkt rku rob roc roe roi rok roo rop ror rot rou rpb rpc rpe rpi rpk rpo rpp rpr rpt rpu rrb rrc rri rrk rrp rrr rrt rru rtb rtc rte rti rtk rto rtp rtr rtt rtu rub ruc rue rui ruk ruo rup rur rut ruu tbb tbc tbe tbi tbk tbo tbp tbr tbt tbu tcb tcc tce tci tck tco tcp tcr tct tcu te- teb tec tee tei tek teo tep ter tet teu tib tic tie tii tik tio tip tir tit tiu tkb tkc tke tkk tko tkp tkr tkt to- tob toc toe toi tok too top tor tot tou tpb tpc tpe tpi tpk tpo tpp tpr tpt tpu trb trc tre tri trk tro trp trr trt tru ttb ttc tte tti ttk tto ttp ttr ttt ttu tub tuc tue tui tuk tuo tup tur tut tuu ubb ubc ube ubi ubk ubo ubp ubr ubt ubu ucb ucc uce uci uck uco ucp ucr uct ucu ueb uec uee uei uep uer uet uib uic uie uii uio uip uir uit uiu ukb ukc uke uki ukk ukp ukr uku uob uoc uoe uok uoo uop uor uot up- upb upc upe upi upk upo upp upr upt upu ur- urb urc ure uri urk uro urp urr urt uru utb utc ute uti utk uto utp utr utt utu uuc uue uur uut uuu

bbbb bbci bbeb bbet bbpr bbrc bcbc bcbp bccc bcci bcec bcer bcet bcie bcit bcor bcpp bcru bctc bcuc bcup bebb bebe bebi bebo beci beck becu beeb beek beep beer beet