-er a-a a-b a-c a-t aaa aab aac aae aag aak aao aap aar aat ab- aba abb abc abe abg abk abo abp abr abt ac- aca acb acc ace acg ack aco acp acr act aea aeb aec aee aeg aek aeo aep aer aet ag- aga agb agc age agg agk ago agp agr agt aka akb akc ake akg akk ako akp akr aoa aob aoc aoe aog aok aoo aop aor aot ap- apa apb apc ape apg apk apo app apr apt ar- ara arb arc are arg ark aro arp arr art at- ata atb atc ate atg ato atp atr att b-p baa bab bac bae bag bak bao bap bar bat bba bbb bbc bbe bbg bbk bbo bbp bbr bbt bca bcb bcc bce bcg bck bco bcp bcr bct be- bea beb bec bee beg bek beo bep ber bet bga bgb bgc bge bgg bgk bgo bgp bgr bgt bka bkb bkc bke bkg bkk bko bkp bkr bkt boa bob boc boe bog bok boo bop bor bot bpa bpb bpc bpe bpg bpo bpp bpr bpt bra brb bre brg brk bro brp brr brt bta btb btc bte btg btk bto btp btr btt c-- caa cab cac cae cag cak cao cap car cat cba cbb cbc cbe cbg cbk cbo cbp cbr cbt cca ccb ccc cce ccg cck cco ccp ccr cct ce- cea ceb cec cee ceg cek ceo cep cer cet cga cgb cgc cge cgg cgo cgp cgr cgt cka ckb ckc cko ckt co- coa cob coc coe cog cok coo cop cor cot cpa cpb cpc cpe cpg cpk cpo cpp cpr cpt cra crb crc cre crg crk cro crp crr crt cta ctb ctc cte ctg ctk cto ctp ctr ctt eaa eab eac eae eag eak eao eap ear eat eba ebb ebc ebe ebg ebk ebo ebp ebr ebt ec- eca ecb ecc ece ecg eck eco ecr ect eea eeb eec eee eeg eek eeo eep eer eet ega egb egc ege egg ego egp egr egt eka ekb ekc eke ekg eko ekp ekr ekt eo- eoa eob eoc eoe eog eok eoo eop eor eot ep- epa epb epc epe epg epo epp epr ept era erb erc ere erg erk ero erp err ert eta etb etc ete etg etk eto etp etr ett g-p gaa gab gac gae gag gak gao gap gar gat gba gbc gbe gbg gbk gbo gbp gbr gbt gca gcb gcc gce gcg gck gco gcp gcr gct ge- gea geb gec gee geg gek geo gep ger get gga ggb ggc ggg ggo ggp ggr ggt gka gkb gko gkp gkt goa gob goc goe gog gok goo gop gor got gpa gpb gpc gpe gpg gpk gpo gpp gpr gpt gra grb grc gre grg grk gro grp grr grt gta gtb gtc gte gtg gtk gto gtp gtr gtt k-t ka- kaa kab kac kae kag kak kao kap kar kat kba kbb kbc kbe kbk kbo kbp kbr kca kcb kcc kce kcg kck kcp kcr kct ke- kea keb kec kee keg kek keo kep ker ket kga kgb kgc kgo kgp kkb kkc kke kkk kkp kkr kkt koa kob koc koe kog kok koo kop kor kot kpa kpc kpe kpk kpo kpp kpr kpt kra krc krg krk kro krp krr krt kta ktb ktc kte ktg ktk kto ktp ktr ktt oaa oab oac oae oag oak oao oap oar oat ob- oba obb obc obe obg obk obo obp obr obt oc- oca ocb occ ocg ock oco ocp ocr oct oea oeb oec oee oeg oeo oep oer oet oga ogc oge ogg ogo ogp ogt oka okb okc oke okg okk oko okp okr oo- ooa oob ooc oog ook ooo oop oor oot op- opa opb opc ope opg opk opo opp opr opt or- ora orb orc ore org ork oro orp orr ort ot- ota otb otc ote otg otk oto otp otr ott p-p paa pab pac pae pag pak pao pap par pat pba pbb pbc pbe pbg pbk pbo pbp pbr pbt pca pcb pcc pce pcg pck pco pcp pcr pct pea peb pec pee peg pek peo pep per pet pga pgb pgc pge pgg pgk pgo pgp pgr pgt pka pkb pkc pke pkg pko pkp pkr pkt poa pob poc poe pog pok poo pop por pot ppa ppb ppc ppe ppg ppk ppo ppp ppr ppt pra prb prc pre prg prk pro prp prr prt pt- pta ptb ptc pte ptg ptk pto ptp ptr ptt ra- raa rab rac rae rag rak rao rap rar rat rba rbb rbc rbe rbg rbk rbo rbp rbr rbt rca rcb rcc rce rcg rco rcp rcr rct re- rea reb rec ree reg rek reo rep rer ret rga rgb rgc rge rgg rgk rgo rgp rgr rgt rkb rkc rke rkg rkk rko rkp rkt roa rob roc roe rog rok roo rop ror rot rpa rpb rpc rpe rpg rpk rpo rpp rpr rpt rra rrb rrc rrg rrk rrp rrr rrt rta rtb rtc rte rtg rtk rto rtp rtr rtt taa tab tac tae tag tak tao tap tar tat tba tbb tbc tbe tbg tbk tbo tbp tbr tbt tca tcb tcc tce tcg tck tco tcp tcr tct te- tea teb tec tee teg tek teo tep ter tet tga tgb tgc tge tgg tgk tgo tgp tgr tgt tka tkb tkc tke tkg tkk tko tkp tkr tkt to- toa tob toc toe tog tok too top tor tot tpa tpb tpc tpe tpg tpk tpo tpp tpr tpt tra trb trc tre trg trk tro trp trr trt tta ttb ttc tte ttg ttk tto ttp ttr ttt

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