a-a a-b a-c aaa aab aac aah aan aao aar aav ab- aba abb abc abh abn abo abr abv ac- aca acb acc ach acn aco acr acv aha ahb ahc ahh ahn aho ahr ahv an- ana anb anc anh ann ano anr anv aoa aob aoc aoh aon aoo aor aov ar- ara arb arc arh arn aro arr arv av- ava avb avc avh avn avo avr baa bab bac bah ban bao bar bav bba bbb bbc bbh bbn bbo bbr bca bcb bcc bch bcn bco bcr bcv bha bhb bhc bhh bho bhr bhv bna bnb bnc bnn bno bnr bnv boa bob boc boh bon boo bor bov bra brb brh brn bro brr brv bva bvb bvc bvh bvn bvo bvr bvv c-- caa cab cac cah can cao car cav cba cbb cbc cbh cbn cbo cbr cbv cca ccb ccc cch ccn cco ccr ccv ch- cha chb chc chh chn cho chr chv cn- cna cnb cnc cnh cnn cno cnr cnv co- coa cob coc coh con coo cor cov cra crb crc crh crn cro crr crv cva cvb cvc cvh cvn cvo cvr cvv haa hab hac hah han hao har hav hba hbb hbc hbh hbn hbo hbr hbv hca hcb hcc hch hcn hco hcr hcv hha hhb hhc hhh hhn hho hhr hhv hna hnb hnc hnh hnn hno hnv hoa hob hoc hoh hon hoo hor hov hr- hra hrb hrc hrh hrn hro hrr hrv hv- hva hvb hvc hvn hvo hvr hvv naa nab nac nah nan nao nar nav nba nbb nbc nbn nbo nbr nbv nca ncb ncc nch ncn nco ncr ncv nha nhb nhc nhh nhn nhr nhv nna nnb nnc nnh nnn nno nnv no- noa nob noc noh non noo nor nov nra nrb nrc nrn nro nrr nrv nva nvb nvc nvh nvn nvv oaa oab oac oah oan oao oar oav ob- oba obb obc obh obn obo obr obv oc- oca ocb occ och ocn oco ocr ocv oha ohc ohh ohn oho ohr on- ona onb onc onh onn ono onr oo- ooa oob ooc ooh oon ooo oor oov or- ora orb orc orh orn oro orr orv ov- ova ovb ovc ovh ovo ovv ra- raa rab rac rah ran rao rar rav rba rbb rbc rbh rbn rbo rbr rca rcb rcc rch rcn rco rcr rcv rh- rha rhb rhc rhh rhn rho rhr rhv rna rnb rnc rnh rnn rno rnr rnv roa rob roc roh ron roo ror rov rra rrb rrc rrh rrn rrr rva rvb rvc rvh rvn rvo rvr rvv v-a vaa vab vac vah van vao var vav vba vbc vbh vbo vbr vbv vca vcc vch vcn vco vcr vh- vha vhb vhc vho vn- vna vno vnr vnv voa vob voc voh von voo vor vov vra vrb vrc vrh vrn vrr vva vvb vvc vvo vvr vvv

-ana -vac a-ha aaaa aaab aaac aaah aaan aaar aaav aaba aabb aabc aabh aaca aacb aacc aach aacn aaco aacr aacv aaha aana aaon aaoo aara aarc aaro aava abaa abab abac aban abar abb- abba abbb abbo abbr abca abcb abcc abch abcn abcr abha abho abhr aboa abob aboh abon aboo abor abov abra abrc abro abva acaa acab acac acan acar acba acca accc acch acco acha achh acho achr acoa acoh acon acor acr- acra acrc acro acrr acrv acvv ahab ahac ahah ahar ahha ahoa ahor ahra ahrc ahrr ahva ana- anaa anab anac anah anan anao anar anba anbb anbo anca ancc anco anha anna annb anno ano- anoa anon anor anrc aoah aoba aoca aonb aono aora aorb aorn arab arac arah aran arar arba arbh arc- arca arch arco arh- arna arno aroa arob aron aroo aror arr- arra arrc arrh arro arrr arva arvn arvo avab avan avao avar avcc avco avon avor avra avro avva avvo baaa baah baan baar baba babb babo babr bac- baca bacc bach bacn baco baha bahn baho bahr bana banc banh bann bano banr baoh baon bar- bara barb barc barh barn baro barr bava bbbb bbch bbrc bcaa bcar bcbc bcca bccc bcor bcra bcvo bhan bhao bhar bhca bhcc bhor bhra bnoc bnor bnrr boab boac boan boar boba bobb bobo boca boch boco boha bohn boho bohr bona bonc bonn bono boob booc booh boon boor bor- bora borh born boro borr bova bovo brab brac brah bran brao brav brca brcb brna brno broa brob broc broh bron broo bror brrr c-bo caaa caab caac caah caan caba cabo cac- caca cacc cach caco cacr caha cahn cana canc canh cann cano caor cara carb carc carn caro carr cava cavo cbac cbar cbbc cbca cbcc cbcn cbcr cbha cbna cbrh cbrn cbva cbvb cbvn cbvr ccaa ccab ccac ccar ccba ccbc ccbn ccca cccb cccc cccv ccha cchr ccna ccnb ccnc ccnr ccob ccoc ccra ccrc ccvo chaa chab chac chah chan chao char chav chca chch chha chnb chnc chno chnr choc choh chon choo chor chov chra chrb chrc chrn chro chrr chvo cnaa cnac cnbc cnco cnna cnoh cnrc cnrr coan coba cobb cobh cobo coca coch coco coha cohn coho con- cona conc conn cono conv coob cooh coon cor- cora corb corc corn coro corr cova covo crab crac cran crar crbc crca crcc crcr crna crob croc croh cron croo cror cvac cvar cvca cvcc cvra cvrr haab haan haar haba habo haco haha hahn haho hana hanc hann hano haon haor hara harc harh harn haro harr harv hava hbar hboc hcbc hcca hccb hccc hcch hhaa hhhh hnna hoac hoan hoar hoba hobo hoca hoch hocn hocr hoha hohn hoho hono hoon hoor hora horc horn horo horr hova hrac hran hrob hron hrrc hvac hvar hvcc naaa naab naac naan naar naba nabc nabo naca nacc nach naco