-ic a-a a-b a-c a-i aaa aab aac aae aai aak aao aav ab- aba abb abc abe abi abk abo abv ac- aca acb acc ace aci ack aco acv aea aeb aec aee aei aek aeo aev ai- aia aib aic aie aii aik aio aiv aka akb akc ake aki akk ako akv aoa aob aoc aoe aoi aok aoo aov av- ava avb avc ave avi avk avo baa bab bac bae bai bak bao bav bba bbb bbc bbe bbi bbk bbo bca bcb bcc bce bci bck bco bcv be- bea beb bec bee bei bek beo bev bi- bia bib bic bie bii bik bio biv bka bkb bkc bke bkk bko bkv boa bob boc boe boi bok boo bov bva bvb bvc bve bvi bvk bvo bvv c-- caa cab cac cae cai cak cao cav cba cbb cbc cbe cbi cbk cbo cbv cca ccb ccc cce cci cck cco ccv ce- cea ceb cec cee cei cek ceo cev ci- cia cib cic cie cii cik cio civ cka ckb ckc cki cko co- coa cob coc coe coi cok coo cov cva cvb cvc cve cvi cvk cvo cvv eaa eab eac eae eai eak eao eav eba ebb ebc ebe ebi ebk ebo ebv ec- eca ecb ecc ece eci eck eco ecv eea eeb eec eee eek eeo eev eia eib eic eie eii eik eio eiv eka ekb ekc eke eki eko ekv eo- eoa eob eoc eoe eoi eok eoo eva evb evc eve evi evo evv i-v ia- iaa iab iac iae iai iao iav iba ibb ibc ibe ibi ibk ibo ibv ica icb icc ice ici ick ico icv ie- iea iec iee iei iek iev iia iib iic iie iii iio ika ikb ikc ike iki ikk iko ikv io- ioa iob ioc ioe ioi ioo iov iva ivb ivc ive ivi ivo ivv ka- kaa kab kac kae kai kak kao kav kba kbb kbc kbe kbi kbk kbo kca kcb kcc kce kci kck ke- kea keb kec kee kei kek keo kev kia kib kic kie kii kik kio kiv kkb kkc kke kki kkk kkv koa kob koc koe koi kok koo kva kvb kvi kvk kvo kvv o-i oaa oab oac oae oai oak oao oav ob- oba obb obc obe obi obk obo obv oc- oca ocb occ oci ock oco ocv oea oeb oec oee oei oeo oia oib oic oie oii oik oio oiv oka okb okc oke oki okk oko oo- ooa oob ooc ooi ook ooo oov ov- ova ovb ovc ove ovi ovo ovv v-a v-e vaa vab vac vae vai vak vao vav vba vbc vbi vbk vbo vbv vca vcc vce vci vco vea veb vec vee vei vek veo vi- via vib vic vie vii vik vio viv vka vkb voa vob voc voe voi vok voo vov vva vvb vvc vvi vvo vvv

-vac a-ak a-be a-ii a-iv a-ok aaaa aaab aaac aaae aaai aaav aaba aabb aabc aabi aaca aacb aacc aace aaci aack aaco aacv aaea aaec aaev aaib aaic aaii aaka aake aaoe aaoo aava abaa abab abac abae abai abak abb- abba abbb abbe abbi abbo abca abcb abcc abci abec abee abia abib abic abie aboa abob abok aboo abov abva acaa acab acac acae acai acba acca accc acce acci acco ace- acea acec acek acev aci- acia acic acie acke acoa acoe acvv aeac aebi aecb aeci aeio aeka aeva aiai aiba aibo aica aicc aice aiea aiee aiia aiib aiic aika aike aiki aiko aioc aioi aiva akaa akae akai akao akca akee akia akie akik akio akka akki akko akok aoba aoca aoce aoki avab avao avcc avce avco avea avec aveo avia avic avie avik avio aviv avva avvo ba-i baaa baak baba babb babe babi babo bac- baca bacc bace baci back baco baek baia baib baic baie baik baio bak- baka bake baki bako bava bave bavi bbbb bbci bbeb bcaa bcbc bcca bccc bcci bcec bcia bcie bcvo beak beav beba bebb bebe bebi bebo beca beci beck beeb beek beia beic beik beka beke beki beko beo- beok bevo biak biao biba bibb bibe bibi bibo bica bicc bice bici bick bico bieb bike biko bio- bioc bioi bive bivi boab boac boai boak boba bobb bobe bobi bobo boca boce bock boco boea boec boee boeo boi- boie boii boka boke boki boko boob booc booe book bova bove bovi bovo c-bo caaa caab caac caba cabe cabi cabo cac- caca cacc cace caci cack caco caec caei caia caib caic caik caio caka cake caoi cava cave cavi cavo cbac cbbc cbca cbcc cbce cbea cbec cbee cbia cbka cbko cbva cbvb cbve ccaa ccab ccac ccai ccba ccbc ccca cccb cccc ccci cccv ccee ccic ccii cciv ccob ccoc ccvi ccvo ceac ceba cec- ceca cece ceci ceco ceeb ceec ceke ceva cevo ciaa ciak ciao ciba cibc cibe cibi cibo cica cicc cici cico ciee ciia ciii cika ciko ciob civa civc cive civo ckac ckbc ckbe ckbi ckck ckco ckcv ckoa ckob ckoc ckoi ckoo ckvo coai coak coba cobb cobe cobi cobo coca coce cock coco coia cok- coka coke coko coob cook cova cove covo cvac cvca cvcc cvii eaba eaca eacc eaec eave ebac ebba ebbc ebbo ebcc ebic eboe eboo ecaa ecac ecai ecao ecbc ecbe ecca eccb eccc ecce ecci ecco ecib ecka ecko eco- eeca eeea eeee eeka eeke eeoc eeva eiao eica eick eico eiec eiei eika eike eiki eiko eka- ekab ekco ekeb ekek ekka ekki ekoa ekoi eoka evac evae evea evia evie evoe evoo evvk i-be iaaa iaac iaai iaba iaca iacc iaea iaec iaia iava ibac ibca ibea ibec ibia ibie icaa icab icac icai icao icbc icca iccb iccc icci icco icea icec icee icke icoc ieac iecc ieie ieio ieva iiac iica iiie