-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aai aak aap aar aat ab- aba abb abc abe abi abk abp abr abt ac- aca acb acc ace aci ack acp acr act aea aeb aec aee aei aek aep aer aet ai- aia aib aic aie aii aik aip air ait aka akb akc ake aki akk akp akr ap- apa apb apc ape api apk app apr apt ar- ara arb arc are ari ark arp arr art at- ata atb atc ate ati atp atr att b-p baa bab bac bae bai bak bap bar bat bba bbb bbc bbe bbi bbk bbp bbr bbt bca bcb bcc bce bci bck bcp bcr bct be- bea beb bec bee bei bek bep ber bet bi- bia bib bic bie bii bik bip bir bit bka bkb bkc bke bkk bkp bkr bkt bpa bpb bpc bpe bpi bpp bpr bpt bra brb bre bri brk brp brr brt bta btb btc bte bti btk btp btr btt c-- caa cab cac cae cai cak cap car cat cba cbb cbc cbe cbi cbk cbp cbr cbt cca ccb ccc cce cci cck ccp ccr cct ce- cea ceb cec cee cei cek cep cer cet ci- cia cib cic cie cii cik cip cir cit cka ckb ckc cki ckt cpa cpb cpc cpe cpi cpk cpp cpr cpt cra crb crc cre cri crk crp crr crt cta ctb ctc cte cti ctk ctp ctr ctt eaa eab eac eae eai eak eap ear eat eba ebb ebc ebe ebi ebk ebp ebr ebt ec- eca ecb ecc ece eci eck ecr ect eea eeb eec eee eek eep eer eet eia eib eic eie eii eik eip eir eit eka ekb ekc eke eki ekp ekr ekt ep- epa epb epc epe epi epp epr ept era erb erc ere eri erk erp err ert eta etb etc ete eti etk etp etr ett ia- iaa iab iac iae iai iap iar iat iba ibb ibc ibe ibi ibk ibp ibr ibt ica icb icc ice ici ick icp icr ict ie- iea iec iee iei iek iep ier iet iia iib iic iie iii iip iir iit ika ikb ikc ike iki ikk ikr ikt ipa ipb ipc ipe ipi ipp ipr ipt ir- ira irb irc ire iri irk irp irr irt ita itb itc ite iti itk itp itt k-t ka- kaa kab kac kae kai kak kap kar kat kba kbb kbc kbe kbi kbk kbp kbr kca kcb kcc kce kci kck kcp kcr kct ke- kea keb kec kee kei kek kep ker ket kia kib kic kie kii kik kip kir kit kkb kkc kke kki kkk kkp kkr kkt kpa kpc kpe kpi kpk kpp kpr kpt kra krc kri krk krp krr krt kta ktb ktc kte ktk ktp ktr ktt p-p paa pab pac pae pai pak pap par pat pba pbb pbc pbe pbi pbk pbp pbr pbt pca pcb pcc pce pci pck pcp pcr pct pea peb pec pee pei pek pep per pet pia pib pic pie pii pik pip pir pit pka pkb pkc pke pki pkp pkr pkt ppa ppb ppc ppe ppi ppk ppp ppr ppt pra prb prc pre pri prk prp prr prt pt- pta ptb ptc pte pti ptk ptp ptr ptt ra- raa rab rac rae rai rak rap rar rat rba rbb rbc rbe rbi rbk rbp rbr rbt rca rcb rcc rce rci rcp rcr rct re- rea reb rec ree rei rek rep rer ret ria rib ric rie rii rik rip rir rit rkb rkc rke rkk rkp rkt rpa rpb rpc rpe rpi rpk rpp rpr rpt rra rrb rrc rri rrk rrp rrr rrt rta rtb rtc rte rti rtk rtp rtr rtt taa tab tac tae tai tak tap tar tat tba tbb tbc tbe tbi tbk tbp tbr tbt tca tcb tcc tce tci tck tcp tcr tct te- tea teb tec tee tei tek tep ter tet tia tib tic tie tii tik tip tir tit tka tkb tkc tke tkk tkp tkr tkt tpa tpb tpc tpe tpi tpk tpp tpr tpt tra trb trc tre tri trk trp trr trt tta ttb ttc tte tti ttk ttp ttr ttt

a-ak a-be a-ii aaaa aaab aaac aaae aaai aaap aaar aaba aabb aabc aabi aabp aabt aaca aacb aacc aace aaci aack aacp aacr aact aaea aaec aaep aaib aaic aaii aaka aake aapa aapc aapi aapt aara aarc aare aari aarp aart aata aatc aatk aatt abaa abab abac abae abai abak abap abar abat abb- abba abbb abbe abbi abbr abbt abca abcb abcc abci abcp abcr abct abec abee aber abet abia abib abic abie abir abit abpa abpc abpi abpp abpr abra abrc abri abta ac-t acaa acab acac acae acai acap acar acat acba acca accc acce acci accp acct ace- acea acec acek acer acet aci- acia acic acie acip acir acke acpa acpe acpi acpr acpt acr- acra acrc acre acri acrr acta actc acte acti actt aeac aeap aebi aecb aeci aect aeer aeit aeka aer- aera aerc aeri aeta aetc aetr aett aiai aiba aica aicc aice aicp aicr aiea aiee aiet aiia aiib aiic aiir aika aike aiki aipa aipe aipi aira aire airi airp airt aita aite aiti aitr aitt akaa akae akai akap akar akca akee aker akia akie akik akir akka akki akr- akra akre akte apac apai apak apap apar apat apba apbr apca apcb apcc apcr apea apec apep aper apet api- apia apic apie apip apit apke appa appc appr appt apra aprc apre apri aprt apta aptc apte apti aptt arab arac arae arai arak arap arar arat arba arbe arbi arc- arca arce arci arct area arec aree arei arek arep aret aria arib arie arii arik arip arit arka arke arki arpa