-ic a-a a-b a-c a-i aaa aab aac aae aai aao aap ab- aba abb abc abe abi abo abp ac- aca acb acc ace aci aco acp aea aeb aec aee aei aeo aep ai- aia aib aic aie aii aio aip aoa aob aoc aoe aoi aoo aop ap- apa apb apc ape api apo app b-p baa bab bac bae bai bao bap bba bbb bbc bbe bbi bbo bbp bca bcb bcc bce bci bco bcp be- bea beb bec bee bei beo bep bi- bia bib bic bie bii bio bip boa bob boc boe boi boo bop bpa bpb bpc bpe bpi bpo bpp c-- caa cab cac cae cai cao cap cba cbb cbc cbe cbi cbo cbp cca ccb ccc cce cci cco ccp ce- cea ceb cec cee cei ceo cep ci- cia cib cic cie cii cio cip co- coa cob coc coe coi coo cop cpa cpb cpc cpe cpi cpo cpp eaa eab eac eae eai eao eap eba ebb ebc ebe ebi ebo ebp ec- eca ecb ecc ece eci eco eea eeb eec eee eeo eep eia eib eic eie eii eio eip eo- eoa eob eoc eoe eoi eoo eop ep- epa epb epc epe epi epo epp ia- iaa iab iac iae iai iao iap iba ibb ibc ibe ibi ibo ibp ica icb icc ice ici ico icp ie- iea iec iee iei iep iia iib iic iie iii iio iip io- ioa iob ioc ioe ioi ioo iop ipa ipb ipc ipe ipi ipo ipp o-i oaa oab oac oae oai oao oap ob- oba obb obc obe obi obo obp oc- oca ocb occ oci oco ocp oea oeb oec oee oei oeo oep oia oib oic oie oii oio oip oo- ooa oob ooc ooi ooo oop op- opa opb opc ope opi opo opp p-p paa pab pac pae pai pao pap pba pbb pbc pbe pbi pbo pbp pca pcb pcc pce pci pco pcp pea peb pec pee pei peo pep pia pib pic pie pii pio pip poa pob poc poe poi poo pop ppa ppb ppc ppe ppi ppo ppp

a-be a-ii aaaa aaab aaac aaae aaai aaap aaba aabb aabc aabi aabp aaca aacb aacc aace aaci aaco aacp aaea aaec aaep aaib aaic aaii aaoe aaoo aapa aapc aapi aapo abaa abab abac abae abai abap abb- abba abbb abbe abbi abbo abca abcb abcc abci abcp abec abee abia abib abic abie aboa abob aboo abpa abpc abpi abpp acaa acab acac acae acai acap acba acca accc acce acci acco accp ace- acea acec aci- acia acic acie acip acoa acoe acop acpa acpe acpi aeac aeap aebi aecb aeci aeio aiai aiba aibo aica aicc aice aicp aiea aiee aiia aiib aiic aioc aioi aipa aipe aipi aoba aoca aoce aopo apac apai apao apap apba apca apcb apcc apco apea apec apep api- apia apic apie apio apip apo- apoc apoe apoo apop appa appc ba-i baaa baba babb babe babi babo bac- baca bacc bace baci baco baia baib baic baie baio bapa bapc bape bapi bapp bbbb bbci bbeb bcaa bcap bcbc bcbp bcca bccc bcci bcec bcia bcie bcpp beap beba bebb bebe bebi bebo beca beci beeb beep beia beic beo- bepo biao biap biba bibb bibe bibi bibo bica bicc bice bici bico bieb bio- bioc bioi bipa bipp boab boac boai boba bobb bobe bobi bobo boca boce boco boea boec boee boeo boep boi- boie boii boob booc booe boop bopa bope bopp bpai bpcp bpea bpoe c-bo caaa caab caac caap caba cabe cabi cabo cac- caca cacc cace caci caco caec caei caia caib caic caio caip caoi capa capb capc cape capi capo capp cbac cbbc cbca cbcc cbce cbcp cbea cbec cbee cbia cbpc cbpp ccaa ccab ccac ccai ccap ccba ccbc ccca cccb cccc ccci cccp ccee ccic ccii ccip ccob ccoc ccpa ccpe ccpp ceac ceba cebp cec- ceca cece ceci ceco cecp ceeb ceec ceip ceop cepa cepc cepe cepo cepp ciaa ciao ciba cibc cibe cibi cibo cica cicc cici cico ciee ciia ciii ciob cipa cipo cipp coai coba cobb cobe cobi cobo coca coce coco cocp coep coia coip coob coop copa cope copi copo copp cpaa cpac cpap cpbc cpca cpce cpea cpeb cpep cpia cpic cpio cppa eaba eaca eacc eaec eaop eapc eapp ebac ebba ebbc ebbo ebcc ebic eboe eboo ebpo ecaa ecac ecai ecao ecbc ecbe ecca eccb eccc ecce ecci ecco ecib ecip eco- ecop ecpa ecpp eeca eeea eeee eeoc eiao eica eico eiec eiei eipo epaa epac epcc epci epec epee epi- epia epic epie epip epoc eppa eppc eppo eppp i-be iaaa iaac iaai iaap iaba iaca iacc iacp iaea iaec iaep iaia iapa iapp ibac ibca ibea ibec ibia ibie icaa icab icac icai icao icap icbc icbp icca iccb iccc icci icco iccp icea icec icee icoc icpa icpc icpo ieac iecc ieie ieio iepa iiac iica iiie iiii iiio iioi iioo iiop iipa ioba iobi ioci iocp ioee ioii ioio iooi iooo ipac ipba ipca ipcc ipce ipea ipec ipie ipoe ipop ippa ippc ippo o-eo oaic oapi obai obba obbo obea obec obia obie oboe oboi ocab ocac ocap ocbc occa occc occi oce ocee ocpa ocpp oec- oeca oecc oeec oepa oiba oici oiii oipc ooaa ooba oobe oobi ooia oooo opap opca opec opei opep opia opic opie opii opio opo- oppa oppi oppo paap paba paca pace paci paco paea paec paep paia paib paie paio paip paoc papa papb pape papi papp pbac pbcc pboc pbpa pcaa pcae pcap pcba pcbc pcca pccc pcce pcea pcep pcia pcip pcoa pcoe pcpb pcpp peab peac peai peap peba peca pece peci peco peec peep peia peio peip pepa pepe pepi pepo piai piao pibb pibi pica picc pice pici pico piea piep piia piip piob pipa