-er -ic a-a a-c a-i aaa aac aad aae aaf aai aak aar ac- aca acc acd ace acf aci ack acr ad- ada adc add ade adf adi adk adr aea aec aed aee aef aei aek aer af- afa afc afd afe aff afi afk afr ai- aia aic aid aie aif aii aik air aka akc akd ake aki akk akr ar- ara arc ard are arf ari ark arr c-- caa cac cad cae caf cai cak car cca ccc ccd cce ccf cci cck ccr cda cdc cdd cde cdf cdi cdk cdr ce- cea cec ced cee cef cei cek cer cfa cfc cfd cfe cff cfi cfk cfr ci- cia cic cid cie cif cii cik cir cka ckc ckd cki cra crc crd cre crf cri crk crr daa dac dad dae daf dai dak dar dca dcc dcd dce dcf dci dck dcr dda ddc ddd dde ddf ddi ddk ddr de- dea dec ded dee def dei dek der dfa dfc dfd dfe dff dfi dfk dfr di- dia dic did die dif dii dik dir dka dkc dke dki dkk dkr dra drc drd dre dri drk drr eaa eac ead eae eaf eai eak ear ec- eca ecc ecd ece ecf eci eck ecr ed- eda edc edd ede edf edi edk edr eea eec eed eee eef eek eer ef- efa efc efd efe eff efi efr eia eic eid eie eif eii eik eir eka ekc ekd eke ekf eki ekr era erc erd ere erf eri erk err faa fac fad fae faf fai fak far fca fcc fcd fce fcf fci fck fcr fda fdc fdd fde fdf fdi fdk fdr fea fec fed fee fef fei fek fer ffa ffc ffd ffe fff ffi ffk ffr fia fic fid fie fif fii fik fir fka fkc fkf fki fkk fra frc frd fre frf fri frk frr i-d i-f ia- iaa iac iad iae iaf iai iar ica icc icd ice icf ici ick icr ida idc idd ide idf idi idk idr ie- iea iec ied iee ief iei iek ier ifa ifc ifd ife iff ifi ifr iia iic iid iie iif iii iir ika ikc ike ikf iki ikk ikr ir- ira irc ird ire irf iri irk irr ka- kaa kac kad kae kaf kai kak kar kca kcc kcd kce kci kck kcr kda kdc kde kdf kdk kdr ke- kea kec ked kee kef kei kek ker kfa kfc kfd kff kfi kia kic kid kie kif kii kik kir kkc kke kki kkk kkr kra krc krd krf kri krk krr ra- raa rac rad rae raf rai rak rar rca rcc rcd rce rcf rci rcr rda rdc rdd rde rdf rdi rdr re- rea rec red ree ref rei rek rer rfa rfc rfd rfe rff rfi rfk rfr ria ric rid rie rif rii rik rir rkc rke rkf rkk rra rrc rrd rrf rri rrk rrr

a-ak a-ii aaaa aaac aaad aaae aaaf aaai aaar aaca aacc aacd aace aacf aaci aack aacr aada aadc aade aadi aaea aaec aafa aafc aafd aaff aafi aaic aaii aaka aake aara aarc aard aare aari acaa acac acad acae acai acar acca accc accd acce accf acci acda acdc acde acdf acdi ace- acea acec aced acek acer acfc acfd acfe acfi aci- acia acic acid acie acif acir ackd acke acr- acra acrc acre acri acrr adaa adac adad adae adai adak adar adcc adci adda addc addd adde addi addr adea adee ader adfa adfc adia adic adie adif adik adir adki adra adre aeac aeaf aeci aede aeer aeka aer- aera aerc aerd aeri afaa afad afak afar afca afcc afci afdc afee afek afer affa affc affi afia afid afif afik afir afka afkr afr- afra afrc afre afri aiai aica aicc aicd aice aicf aicr aida aidc aide aidi aidr aiea aiee aifd aiff aiia aiic aiid aiir aika aike aiki aira aird aire airi akaa akae akai akar akca aked akee aker akia akid akie akif akik akir akka akki akr- akra akre arac arad arae araf arai arak arar arc- arca arce arci arda ardc arde ardf ardi area arec ared aree aref arei arek arfa arfc arff aria arid arie arif arii arik arka arke arki arr- arra arrc arre arri arrk arrr c-cd caaa caac caaf cac- caca cacc cace caci cack cacr cada cadc cadd cade cadi cadr caec caei caer cafa cafc cafe caff caia caic caid caik cair caka cake cara carc card care carf cari cark carr ccaa ccac ccad ccaf ccai ccar ccca cccc cccf ccci ccdc ccdf ccdi ccdr cced ccee ccfa ccfc ccfd ccff ccfi ccic ccid ccii ccir ccra ccrc ccre ccrf ccri cd-e cd-r cdaa cdac cdad cdai cdda cddr cdec cdef cder cdfa cdfe cdic cdii cdre ceac cead cear cec- ceca cece ceci ceda cedd cede cedi ceec cef- cefa cefc ceke cer- cera cerc cerd cere cerf ceri cfaa cfac cfae cfar cfca cfcf cfda cffr cfia cfra cfre ciaa ciak ciar cica cicc cici cicr cida cidc cide cidi cidr ciee cier cifa cife ciff ciia ciid ciii cika cikr cira circ cire ciri cirk cirr ckac ckck cker ckfi ckfr ckrc ckrd crac craf crai crar crca crcc crce crcr crda crdc cre- crea crec cred cree crei crfc cria cric crie crif crik crkc daad daae daar daca dace daci dada dade dadi daer dafa dafc dafe daff dafi daia daid daie daik dair daka dake daki dara darc dard dare darf dari dark darr dcca dccc dcci dcfc dcia dcii dcra dcrk dddd ddie ddrc ddre deac dead deae deaf deak dear dec- deca decc decd dece deci deck deda dedd dede dedi deed deef deek deer defe deff defi deid deie deif deir dek- deka deke der- dera derc dere derf deri derk derr dfaf dfcc dfer dffa