-er -ic a-a a-b a-c a-i aaa aab aac aad aae aai aar ab- aba abb abc abd abe abi abr ac- aca acb acc acd ace aci acr ad- ada adb adc add ade adi adr aea aeb aec aed aee aei aer ai- aia aib aic aid aie aii air ar- ara arb arc ard are ari arr baa bab bac bad bae bai bar bba bbb bbc bbd bbe bbi bbr bca bcb bcc bcd bce bci bcr bda bdb bdc bdd bde bdi bdr be- bea beb bec bed bee bei ber bi- bia bib bic bid bie bii bir bra brb brd bre bri brr c-- caa cab cac cad cae cai car cba cbb cbc cbd cbe cbi cbr cca ccb ccc ccd cce cci ccr cda cdb cdc cdd cde cdi cdr ce- cea ceb cec ced cee cei cer ci- cia cib cic cid cie cii cir cra crb crc crd cre cri crr daa dab dac dad dae dai dar dba dbb dbc dbd dbe dbi dbr dca dcb dcc dcd dce dci dcr dda ddb ddc ddd dde ddi ddr de- dea deb dec ded dee dei der di- dia dib dic did die dii dir dra drb drc drd dre dri drr eaa eab eac ead eae eai ear eba ebb ebc ebd ebe ebi ebr ec- eca ecb ecc ecd ece eci ecr ed- eda edb edc edd ede edi edr eea eeb eec eed eee eer eia eib eic eid eie eii eir era erb erc erd ere eri err i-d ia- iaa iab iac iad iae iai iar iba ibb ibc ibd ibe ibi ibr ica icb icc icd ice ici icr ida idb idc idd ide idi idr ie- iea iec ied iee iei ier iia iib iic iid iie iii iir ir- ira irb irc ird ire iri irr ra- raa rab rac rad rae rai rar rba rbb rbc rbd rbe rbi rbr rca rcb rcc rcd rce rci rcr rda rdb rdc rdd rde rdi rdr re- rea reb rec red ree rei rer ria rib ric rid rie rii rir rra rrb rrc rrd rri rrr

a-be a-ii aaaa aaab aaac aaad aaae aaai aaar aaba aabb aabc aabd aabi aaca aacb aacc aacd aace aaci aacr aada aadc aade aadi aaea aaec aaib aaic aaii aara aarc aard aare aari abaa abab abac abad abae abai abar abb- abba abbb abbe abbi abbr abca abcb abcc abcd abci abcr abda abdi abec abed abee aber abia abib abic abid abie abir abra abrc abri acaa acab acac acad acae acai acar acba acca accc accd acce acci acda acdb acdc acde acdi ace- acea acec aced acer aci- acia acic acid acie acir acr- acra acrc acre acri acrr adaa adab adac adad adae adai adar adba adbc adbi adcc adci adda addc addd adde addi addr adea adeb adee ader adia adib adic adie adir adra adre aeac aebi aecb aeci aede aeer aer- aera aerc aerd aeri aiai aiba aica aicc aicd aice aicr aida aidb aidc aide aidi aidr aiea aiee aiia aiib aiic aiid aiir aira aird aire airi arab arac arad arae arai arar arba arbe arbi arc- arca arce arci arda ardc arde ardi area arec ared aree arei aria arib arid arie arii arr- arra arrc arre arri arrr ba-i baaa baad baar baba babb babe babi babr bac- baca bacc bace baci bada badb badd bade badi badr baed baer baia baib baic baid baie bair bar- bara barb barc bard bare bari barr bbad bbbb bbci bbdd bbeb bbrc bcaa bcar bcbc bcca bccc bcci bcda bcde bcec bcer bcia bcie bcra bd-r bdbc bddc bdii bead bear beba bebb bebe bebi beca beci beda bede bedi beeb beed beer beia beic beir bera berc berd bere beri berr biad biar biba bibb bibe bibi bica bicc bice bici bida bide bidi bidr bieb bied bier bira birb bird bire biri birr brab brac brad brae brai brca brcb brce brda brea breb brec bred bree brei brer bria bric brid brie brrr c-cd caaa caab caac caba cabe cabi cac- caca cacc cace caci cacr cada cadc cadd cade cadi cadr caec caei caer caia caib caic caid cair cara carb carc card care cari carr cbac cbar cbbc cbca cbcc cbce cbcr cbdb cbdc cbdi cbea cbec cbee cber cbia cbid cbir cbrd cbre ccaa ccab ccac ccad ccai ccar ccba ccbc ccca cccb cccc ccci ccdc ccdi ccdr cced ccee ccic ccid ccii ccir ccra ccrc ccre ccri cd-e cd-r cdaa cdac cdad cdai cdba cdda cddb cddr cdec cder cdic cdii cdre ceac cead cear ceba cec- ceca cece ceci ceda cedd cede cedi ceeb ceec cer- cera cerc cerd cere ceri ciaa ciar ciba cibc cibe cibi cica cicc cici cicr cida cidc cide cidi cidr ciee cier ciia ciid ciii cira cirb circ cire ciri cirr crab crac crai crar crbc crca crcc crce crcr crda crdc cre- crea creb crec cred cree crei cria crib cric crie daab daad daae daar daba dabb daca dace daci dada dade dadi daeb daer daia daid daie dair dara darb darc dard dare dari darr dbar dbcc dcbc dcca dccb dccc dcci dcdb dcia dcii dcra dddd ddie ddrc ddre deac dead deae dear deba debe debi dec- deca decc decd dece deci deda dedd dede dedi deeb deed deer deid deie deir der- dera derb derc dere deri derr dia- diab diac diad diar diba dibb dibe dica dice dici dida dide didi diea dieb died dier diii dira dird dire dirr draa drab drac drad drar drba drbc drca drda drea dred dree drei drib dric drie drra eaba eaca eacc eada eadb eadd eadi eaec eara earb eard eare ebac ebba ebbc ebbr ebcc ebed eber ebic ebid ecaa ecac ecad ecai ecar ecbc ecbe ecca eccb eccc ecce ecci ecdc eced ecib ecra