-ic a-a a-b a-c a-i a-t aaa aab aac aai aan aao aat ab- aba abb abc abi abn abo abt ac- aca acb acc aci acn aco act ai- aia aib aic aii ain aio ait an- ana anb anc ani ann ano ant aoa aob aoc aoi aon aoo aot at- ata atb atc ati atn ato att baa bab bac bai ban bao bat bba bbb bbc bbi bbn bbo bbt bca bcb bcc bci bcn bco bct bi- bia bib bic bii bin bio bit bna bnb bnc bni bnn bno bnt boa bob boc boi bon boo bot bta btb btc bti btn bto btt c-- caa cab cac cai can cao cat cba cbb cbc cbi cbn cbo cbt cca ccb ccc cci ccn cco cct ci- cia cib cic cii cin cio cit cn- cna cnb cnc cni cnn cno cnt co- coa cob coc coi con coo cot cta ctb ctc cti ctn cto ctt ia- iaa iab iac iai ian iao iat iba ibb ibc ibi ibn ibo ibt ica icb icc ici icn ico ict iia iib iic iii iin iio iit in- ina inb inc ini inn ino int io- ioa iob ioc ioi ion ioo iot ita itb itc iti itn ito itt n-i naa nab nac nai nan nao nat nba nbb nbc nbi nbn nbo nbt nca ncb ncc nci ncn nco nct nia nib nic nii nin nio nit nna nnb nnc nni nnn nno nnt no- noa nob noc noi non noo not nta ntb ntc nti ntn nto ntt o-i oaa oab oac oai oan oao oat ob- oba obb obc obi obn obo obt oc- oca ocb occ oci ocn oco oct oia oib oic oii oin oio oit on- ona onb onc oni onn ono ont oo- ooa oob ooc ooi oon ooo oot ot- ota otb otc oti otn oto ott taa tab tac tai tan tao tat tba tbb tbc tbi tbn tbo tbt tca tcb tcc tci tcn tco tct tia tib tic tii tin tio tit tna tnb tnc tni tnn tno tnt to- toa tob toc toi ton too tot tta ttb ttc tti ttn tto ttt

-ana a-ii aaaa aaab aaac aaai aaan aaba aabb aabc aabi aabt aaca aacb aacc aaci aacn aaco aact aaib aaic aaii aain aana aani aaon aaoo aata aatc aatt abaa abab abac abai aban abat abb- abba abbb abbi abbo abbt abca abcb abcc abci abcn abct abia abib abic abin abit aboa abob abon aboo abot abta ac-t acaa acab acac acai acan acat acba acca accc acci acco acct aci- acia acic acin acoa acon acot acta actc acti acto actt aiai aian aiba aibn aibo aica aicc aiia aiib aiic aiin aina ainc aini aino aint aioc aioi aion aita aiti aitt ana- anaa anab anac anai anan anao anat anba anbb anbi anbo anca ancc anco anct ania anib anic anin anio anit anna annb anni anno annt ano- anoa anon ant- anta anti anto antt aoba aoca aonb aono aont aotc at-t ataa atab atac atai atan atat atca atcc atco atia atic atin atit atna atno atob atoc atoi aton atot atta atti attn atto ba-i baaa baan baat baba babb babi babo bac- baca bacc baci bacn baco bact baia baib baic bain baio bait bana banc bani bann bano bant baon bata batc bati batn bato batt bbbb bbci bbin bcaa bcat bcbc bcca bccc bcci bcia bcit bctc bian biao biat biba bibb bibi bibo bica bicc bici bico biin bin- bina binc bini binn bino bint bio- bioc bioi bion biot bita bitc bito bitt bnai bnib bnin bnoc bnta boab boac boai boan boat boba bobb bobi bobo boca boco boi- boii boin boit bona bonc boni bonn bono bont boob booc boon boot bota botb boti botn boto bott btaa btan btcc btob bttb c-bo caaa caab caac caan caat caba cabi cabo cac- caca cacc caci caco caia caib caic cain caio cait cana canc cani cann cano cant caoi cat- cata catb catc cati cato catt cbac cbat cbbc cbca cbcc cbcn cbct cbia cbit cbna cbot cbta cbtc ccaa ccab ccac ccai ccat ccba ccbc ccbn ccca cccb cccc ccci ccic ccii ccna ccnb ccnc ccni ccob ccoc cctb cctc cctt ciaa cian ciao ciat ciba cibc cibi cibo cica cicc cici cico cict ciia ciii ciit cin- cina cinc cini cino cint ciob cion cita citb citi cito citt cnaa cnac cnbc cnci cnco cnib cnic cnna cnta cntc coai coan coat coba cobb cobi cobo coca coco coct coia coin coit con- cona conc coni conn cono cont coob coon coot cota cotb cotc coti cotn coto cott ctab ctan ctba ctbi ctca ctia ctic ctot ctta cttn i-no iaaa iaac iaai iaat iaba iaca iacc iact iaia iain iana iata iatc iati ibac iban ibat ibca ibia ibon ibot ibtb ibtc icaa icab icac icai ican icao icat icbc icca iccb iccc icci iccn icco icct icnb icnc icoc icon icta iiac iica iiii iiio iiit iino iioi iioo iita iitt inab inac inai inan inao inat inba inbo inca incb inci inco inia init inna inni inno ino- inoi inon inot inta inti intn into ioan ioba iobi ioci ioii ioio ioit iona ioni ionn iono iooi iooo iota ioto itaa itac itai itan itat itia itic itin itno itoi iton itoo itta itto n-ii naaa naab naac naai naan naat naba nabc nabi nabo naca nacc naci naco naia naib naic nain naio nait nan- nana nanb nani nann nano nant naoc naoi naot nata natc nati nato natt nbaa nbbc nbbo nbca nbcc nbci nbco nbia nbic nbti ncaa ncac ncat ncba ncbc ncbi ncca nccc ncci nccn ncct ncia ncit ncna ncnc ncoa ncoc ncta nctc niab niac nian nibi nibo nica nicc nici nico niia niit nina nini nino nion nioo nita nitb nitc niti