a-a a-b a-c aaa aab aac aad aah aak aau aav ab- aba abb abc abd abh abk abu abv ac- aca acb acc acd ach ack acu acv ad- ada adb adc add adh adk adu adv aha ahb ahc ahd ahh ahk ahu ahv aka akb akc akd akh akk aku akv au- aua aub auc aud auh auk auv av- ava avb avc avd avh avk avu b-u baa bab bac bad bah bak bau bav bba bbb bbc bbd bbh bbk bbu bca bcb bcc bcd bch bck bcu bcv bda bdb bdc bdd bdh bdk bdu bdv bha bhb bhc bhd bhh bhk bhu bhv bka bkb bkc bkk bkv bua bub buc bud buh buk buu bva bvb bvc bvd bvh bvk bvu bvv c-- caa cab cac cad cah cak cau cav cba cbb cbc cbd cbh cbk cbu cbv cca ccb ccc ccd cch cck ccu ccv cda cdb cdc cdd cdh cdk cdu cdv ch- cha chb chc chd chh chk chu chv cka ckb ckc ckd ckh cua cub cuc cud cuh cuk cuu cuv cva cvb cvc cvd cvh cvk cvu cvv daa dab dac dad dah dak dau dav dba dbb dbc dbd dbh dbk dbu dbv dca dcb dcc dcd dck dcu dcv dda ddb ddc ddd ddh ddk ddu dh- dha dhb dhc dhd dhh dhk dhu dka dkb dkc dkk dku dua dub duc dud duh duk duv dva dvb dvc dvd dvh dvk dvu haa hab hac had hah hak hau hav hba hbb hbc hbd hbh hbk hbu hbv hca hcb hcc hcd hch hck hcv hda hdb hdc hdd hdh hdk hdu hdv hha hhb hhc hhd hhh hhk hhu hhv hka hkb hkd hkh hkk hku hua hub huc hud huh huk huu huv hv- hva hvb hvc hvd hvk hvv ka- kaa kab kac kad kah kak kau kav kba kbb kbc kbd kbh kbk kbu kca kcb kcc kcd kch kck kcu kda kdb kdc kdh kdk kdu kha khh khk khu khv kkb kkc kkh kkk kku kkv kub kuc kud kuh kuk kuu kva kvb kvh kvk kvv ua- uaa uab uac uad uah uak uau uav uba ubb ubc ubh ubk ubu ubv uca ucb ucc ucd uch uck ucu ucv uda udb udc udd udk udu udv uha uhb uhc uhd uhh uhu uhv uka ukb ukc ukk uku uua uuc uuu uva uvb uvc uvu uvv v-a vaa vab vac vad vah vak vau vav vba vbc vbd vbh vbk vbv vca vcc vcd vch vcu vdb vdc vdd vdh vdk vdu vdv vh- vha vhb vhc vhd vka vkb vuk vuv vva vvb vvc vvv

-vac a-ak a-ha aaaa aaab aaac aaad aaah aaav aaba aabb aabc aabd aabh aaca aacb aacc aacd aach aack aacu aacv aada aadc aadu aaha aahk aaka aaku aava abaa abab abac abad abak abau abb- abba abbb abca abcb abcc abcd abch abda abdu abha abua abud abuk abva abvd acaa acab acac acad acba acca accc accd acch accu acda acdb acdc acha achh achu ackd acu- acvv adaa adab adac adad adah adak adba adbc adcc adda addc addd addu adha adhd adhu adua adub aduk advb ahab ahac ahad ahah ahau ahha ahua ahva akaa akah akca akha akka akku akua auaa auca auch audc audh avab avcc avda avva baaa baad baah baak baba babb babu bac- baca bacc bach back bada badb badd badh badu baha bahu bak- baka bakh baku bau- baud bauk bava bavu bbad bbau bbbb bbch bbdd bcaa bcbc bcca bccc bcda bchd bcuc bdav bdbc bddc bddh bhca bhcc bhuu buad buba bubb bubu buca bucc buch buck bucu buda budb budd budu buha buka bukh bukk buku buvd bvdu c-cd caaa caab caac caah caba cabu cac- caca cacc cach cack cada cadc cadd cadu caha caka cauc cauk cava cavu cbac cbbc cbca cbcc cbcu cbdb cbdc cbha cbka cbva cbvb ccaa ccab ccac ccad ccba ccbc ccca cccb cccc cccu cccv ccdc ccdh ccha ccuc cdaa cdac cdad cdba cdda cddb cdvd chaa chab chac chad chah chak chau chav chca chch chha chka chkb chua chub chud chuk ckac ckbc ckch ckck ckcv ckdu ckhv cuau cub- cuba cubb cuca cucc cuck cuda cuk- cuka cvac cvca cvcc daab daad daau daba dabb dabu daca dada dadu daha dahu daka daku daub daud dauk dava dbcc dcbc dcca dccb dccc dccu dccv dcdb dcvd dddd ddub dhaa dhad dhak dhau dkba dkdc duaa duab duad duah dub- duba dubb dubc dubh dubu duca duch duck duda dudd dudu duha duhu duka duku duva dvda haab haad haak haba habu hack hada hadh hadu haha haka hakk haku hau- haud hava hbcd hcbc hcca hccb hccc hcch hdbk hdca hdda hhaa hhhh hkbu hkcc huac huah huba hubb huch huck hucu huda hudd hudu huhu huub hvac hvcc kaaa kaab kaak kaba kabb kabc kabd kabu kacb kacc kacd kach kacu kacv kad- kada kadd kadu kadv kaha kahc kahu kaka kakc kakh kakk kaku kau- kaub kauc kaud kauk kava kavb kavh kavu kavv kbaa kbab kbac kbad kbak kbba kbbb kbbc kbbd kbbk kbbu kbca kbcb kbch kbck kbcu kbdb kbdv kbhb kbhc kbhh kbkb kbkk kbkv kbua kbub kbuc kbud kbuk kbuu kbva kbvb kbvc kbvu kcaa kcab kcac kcad kcah kcau kcav kcba kcbc kcbd kcbk kcbu kcca kccb kccc kccd kcck kccu kccv kcda kcdc kcdd kcdu kcdv kcha kchh kchk kchu kckc kckk kckv kcua kcub kcuh kcuk kcvd kcvh kcvk kcvu kcvv kdaa kdab kdac kdad kdak kdav kdbb kdbv kdca kdcc kdcd kddb kddc kddd kddk kdka kdkb kdkd kdkk kdub kduc kduv kdva kdvb kdvv khab khac khad khak khav khbc khbd khca khcb khcc khch khck khcv khdc khdk khdv khhk khka khkk khkv khub khud khuk khvh kkaa kkac kkba kkbb kkbd kkcb kkcd kkch kkck kkda kkdc kkdd kkdv kkha kkhb