-er -ic a-a a-b a-c a-i aaa aab aac aae aah aai aar ab- aba abb abc abe abh abi abr ac- aca acb acc ace ach aci acr aea aeb aec aee aeh aei aer aha ahb ahc ahe ahh ahi ahr ai- aia aib aic aie aih aii air ar- ara arb arc are arh ari arr baa bab bac bae bah bai bar bba bbb bbc bbe bbh bbi bbr bca bcb bcc bce bch bci bcr be- bea beb bec bee beh bei ber bha bhb bhc bhe bhh bhi bhr bi- bia bib bic bie bih bii bir bra brb bre brh bri brr c-- caa cab cac cae cah cai car cba cbb cbc cbe cbh cbi cbr cca ccb ccc cce cch cci ccr ce- cea ceb cec cee ceh cei cer ch- cha chb chc che chh chi chr ci- cia cib cic cie cih cii cir cra crb crc cre crh cri crr eaa eab eac eae eah eai ear eba ebb ebc ebe ebh ebi ebr ec- eca ecb ecc ece ech eci ecr eea eeb eec eee eer eha ehb ehc ehe ehh ehi ehr eia eib eic eie eii eir era erb erc ere erh eri err h-i haa hab hac hae hah hai har hba hbb hbc hbe hbh hbi hbr hca hcb hcc hce hch hci hcr he- hea heb hec hee heh hei her hha hhb hhc hhe hhh hhi hhr hia hib hic hie hih hii hir hr- hra hrb hrc hre hrh hri hrr ia- iaa iab iac iae iah iai iar iba ibb ibc ibe ibh ibi ibr ica icb icc ice ich ici icr ie- iea iec iee iei ier iha ihb ihc ihe ihh ihi ihr iia iib iic iie iih iii iir ir- ira irb irc ire iri irr ra- raa rab rac rae rah rai rar rba rbb rbc rbe rbh rbi rbr rca rcb rcc rce rch rci rcr re- rea reb rec ree reh rei rer rh- rha rhb rhc rhe rhh rhi rhr ria rib ric rie rih rii rir rra rrb rrc rrh rri rrr

a-be a-ha a-ii aaaa aaab aaac aaae aaah aaai aaar aaba aabb aabc aabh aabi aaca aacb aacc aace aach aaci aacr aaea aaec aaha aaib aaic aaii aara aarc aare aari abaa abab abac abae abai abar abb- abba abbb abbe abbi abbr abca abcb abcc abch abci abcr abec abee aber abha abhi abhr abia abib abic abie abir abra abrc abri acaa acab acac acae acai acar acba acca accc acce acch acci ace- acea acec aceh acer acha ache achh achi achr aci- acia acic acie acir acr- acra acrc acre acri acrr aeac aebi aecb aeci aeer aer- aera aerc aeri ahab ahac ahah ahai ahar ahha ahir ahra ahrc ahre ahrr aiai aiba aica aicc aice aich aicr aiea aiee aiha aiia aiib aiic aiir aira aire airh airi arab arac arae arah arai arar arba arbe arbh arbi arc- arca arce arch arci area arec aree areh arei arh- aria arib arie arii arr- arra arrc arre arrh arri arrr ba-i baaa baah baar baba babb babe babi babr bac- baca bacc bace bach baci baer baha bahi bahr baia baib baic baie bair bar- bara barb barc bare barh bari barr bbbb bbch bbci bbeb bbrc bcaa bcar bcbc bcca bccc bcci bcec bcer bche bcia bcie bcra beah bear beba bebb bebe bebi beca bech beci beeb beer behr beia beic beir bera berc bere beri berr bhai bhar bhca bhcc bher bhie bhir bhra biar biba bibb bibe bibi bica bicc bice bich bici bieb bier biha bihe bihi bira birb bire biri birr brab brac brae brah brai brca brcb brce brea breb brec bree brei brer bria bric brie brih brrr caaa caab caac caah caba cabe cabi cac- caca cacc cace cach caci cacr caec caei caer caha cahe caia caib caic cair cara carb carc care cari carr cbac cbar cbbc cbca cbcc cbce cbcr cbea cbec cbee cber cbha cbia cbir cbre cbrh ccaa ccab ccac ccai ccar ccba ccbc ccca cccb cccc ccci ccee ccha cche cchr ccic ccii ccir ccra ccrc ccre ccri ceac cear ceba cec- ceca cece ceci ceeb ceec cer- cera cerc cere ceri chaa chab chac chae chah chai char chca chce chch chci chea cheb chec chee cheh cher chha chia chib chic chie chih chir chra chrb chrc chrr ciaa ciar ciba cibc cibe cibi cica cicc cich cici cicr ciee cier cihr ciia ciii cira cirb circ cire cirh ciri cirr crab crac crai crar crbc crca crcc crce crcr cre- crea creb crec cree creh crei cria crib cric crie eaba eabh eaca eacc each eaec eara earb eare earh ebac ebba ebbc ebbr ebcc eber ebic ecaa ecac ecai ecar ecbc ecbe ecca eccb eccc ecce ecci echa eche ecib ecra ecrc ecri ecrr eeca eeea eeee eera eerc ehaa ehcc ehea eheh eher ehre eica eich eiec eiei eier eiha eira eire erba erbb erbe erca ercc erce erch ereb erec erei erer erhc eria eric erie erih erra errc erre h-ii haab haar haba habe habi hace haec haha haie hair hara harc hare harh hari harr hbar hbic hcbc hcca hccb hccc hcch hchi heah hear hebb hebe hebi hebr heca hech heeb heer hehe heia heic heie heih heir hera herb herc here heri herr hhaa hhhh hi-c hiaa hiab hiar hiba hibi hicc hice hich hiei hier hihc hihe hihi hiie hira hire hiri hrac hree hrib hrrc i-be iaaa iaac iaai iaba iaca iacc iacr iaea iaec iahc iaia iara iarc iare ibac ibar ibca ibea ibec ibeh ibia ibie ibra ibrc ibri icaa icab icac icai icar icbc icca iccb iccc icci iccr icea icec icee icer ichc iche ichi ichr icra icrc icre icrr ieac iecc ieie iera iere ieri ihab ihba ihcc iher ihra