a-a a-b a-c aaa aab aac aah aak aan aao aar ab- aba abb abc abh abk abn abo abr ac- aca acb acc ach ack acn aco acr aha ahb ahc ahh ahk ahn aho ahr aka akb akc akh akk akn ako akr an- ana anb anc anh ank ann ano anr aoa aob aoc aoh aok aon aoo aor ar- ara arb arc arh ark arn aro arr baa bab bac bah bak ban bao bar bba bbb bbc bbh bbk bbn bbo bbr bca bcb bcc bch bck bcn bco bcr bha bhb bhc bhh bhk bho bhr bka bkb bkc bkk bkn bko bkr bna bnb bnc bnk bnn bno bnr boa bob boc boh bok bon boo bor bra brb brh brk brn bro brr c-- caa cab cac cah cak can cao car cba cbb cbc cbh cbk cbn cbo cbr cca ccb ccc cch cck ccn cco ccr ch- cha chb chc chh chk chn cho chr cka ckb ckc ckh cko cn- cna cnb cnc cnh cnn cno cnr co- coa cob coc coh cok con coo cor cra crb crc crh crk crn cro crr haa hab hac hah hak han hao har hba hbb hbc hbh hbk hbn hbo hbr hca hcb hcc hch hck hcn hco hcr hha hhb hhc hhh hhk hhn hho hhr hka hkb hkh hkk hkn hko hkr hna hnb hnc hnh hnk hnn hno hoa hob hoc hoh hok hon hoo hor hr- hra hrb hrc hrh hrk hrn hro hrr ka- kaa kab kac kah kak kan kao kar kba kbb kbc kbh kbk kbn kbo kbr kca kcb kcc kch kck kcn kcr kha khh khk khn kho khr kkb kkc kkh kkk kkn kkr kn- kna knc knk knn kno knr koa kob koc koh kok kon koo kor kra krc krk krn kro krr naa nab nac nah nak nan nao nar nba nbb nbc nbk nbn nbo nbr nca ncb ncc nch nck ncn nco ncr nha nhb nhc nhh nhk nhn nhr nka nkc nkk nkn nko nkr nna nnb nnc nnh nnk nnn nno no- noa nob noc noh nok non noo nor nra nrb nrc nrk nrn nro nrr oaa oab oac oah oak oan oao oar ob- oba obb obc obh obk obn obo obr oc- oca ocb occ och ock ocn oco ocr oha ohc ohh ohn oho ohr oka okb okc okk oko okr on- ona onb onc onh onk onn ono onr oo- ooa oob ooc ooh ook oon ooo oor or- ora orb orc orh ork orn oro orr ra- raa rab rac rah rak ran rao rar rba rbb rbc rbh rbk rbn rbo rbr rca rcb rcc rch rcn rco rcr rh- rha rhb rhc rhh rhn rho rhr rkb rkc rkk rko rna rnb rnc rnh rnn rno rnr roa rob roc roh rok ron roo ror rra rrb rrc rrh rrk rrn rrr

-ana a-ak a-ha a-ok aaaa aaab aaac aaah aaan aaar aaba aabb aabc aabh aaca aacb aacc aach aack aacn aaco aacr aaha aahk aaka aana aaon aaoo aara aarc aaro abaa abab abac abak aban abar abb- abba abbb abbo abbr abca abcb abcc abch abcn abcr abha abho abhr aboa abob aboh abok abon aboo abor abra abrc abro acaa acab acac acan acar acba acca accc acch acco acha achh acho achr acoa acoh acon acor acr- acra acrc acro acrr ahab ahac ahah ahar ahha ahoa ahok ahor ahra ahrc ahrr akaa akah akan akao akar akca akha akka akko akna akok akon akr- akra ana- anaa anab anac anah anak anan anao anar anba anbb anbo anca ancc anco anha ank- anka ankh anko anna annb anno ano- anoa anon anor anrc aoah aoba aoca aonb aono aora aorb aorn arab arac arah arak aran arar arba arbh arc- arca arch arco arh- arka arkh arko arna arnk arno aroa arob aron aroo aror arr- arra arrc arrh arrk arro arrr baaa baah baak baan baar baba babb babo babr bac- baca bacc bach back bacn baco baha bahn baho bahr bak- baka bakh bako bakr bana banc banh bank bann bano banr baoh baon bar- bara barb barc barh bark barn baro barr bbbb bbch bbrc bcaa bcar bcbc bcca bccc bcor bcra bhan bhao bhar bhca bhcc bhor bhra bnoc bnor bnrr boab boac boak boan boar boba bobb bobo boca boch bock boco boha bohn boho bohr boka bokn boko bona bonc bonk bonn bono boob booc booh book boon boor bor- bora borh bork born boro borr brab brac brah brak bran brao brca brcb brka brkb brna brno broa brob broc broh brok bron broo bror brrr c-bo caaa caab caac caah caan caba cabo cac- caca cacc cach cack caco cacr caha cahn caka cana canc canh cank cann cano caor cara carb carc cark carn caro carr cbac cbar cbbc cbca cbcc cbcn cbcr cbha cbka cbkn cbko cbkr cbna cbrh cbrn ccaa ccab ccac ccar ccba ccbc ccbn ccca cccb cccc ccha cchr ccna ccnb ccnc ccnr ccob ccoc ccra ccrc chaa chab chac chah chak chan chao char chca chch chha chka chkb chnb chnc chno chnr choc choh chok chon choo chor chra chrb chrc chrn chro chrr ckac ckan ckbc ckch ckck ckco cknb cknc ckoa ckob ckoc ckoo ckor ckrc cnaa cnac cnbc cnco cnna cnoh cnrc cnrr coak coan coba cobb cobh cobo coca coch cock coco coha cohn coho cok- coka coko con- cona conc conk conn cono coob cooh cook coon cor- cora corb corc cork corn coro corr crab crac cran crar crbc crca crcc crcr crkc crna crob croc croh crok cron croo cror haab haak haan haar haba habo hack haco haha hahn haho haka hakk hako hana hanc hank hann hano haon haor hara harc harh hark harn haro harr hbar hboc hcbc hcca hccb hccc hcch hhaa hhhh