-ana a-ha aaaa aaab aaac aaah aaan aaar aaba aabb aabc aabh aaca aacb aacc aach aacn aacr aaha aana aara aarc abaa abab abac aban abar abb- abba abbb abbr abca abcb abcc abch abcn abcr abha abhr abra abrc acaa acab acac acan acar acba acca accc acch acha achh achr acr- acra acrc acrr ahab ahac ahah ahar ahha ahra ahrc ahrr ana- anaa anab anac anah anan anar anba anbb anca ancc anha anna annb anrc arab arac arah aran arar arba arbh arc- arca arch arh- arna arr- arra arrc arrh arrr baaa baah baan baar baba babb babr bac- baca bacc bach bacn baha bahn bahr bana banc banh bann banr bar- bara barb barc barh barn barr bbbb bbch bbrc bcaa bcar bcbc bcca bccc bcra bhan bhar bhca bhcc bhra bnrr brab brac brah bran brca brcb brna brrr caaa caab caac caah caan caba cac- caca cacc cach cacr caha cahn cana canc canh cann cara carb carc carn carr cbac cbar cbbc cbca cbcc cbcn cbcr cbha cbna cbrh cbrn ccaa ccab ccac ccar ccba ccbc ccbn ccca cccb cccc ccha cchr ccna ccnb ccnc ccnr ccra ccrc chaa chab chac chah chan char chca chch chha chnb chnc chnr chra chrb chrc chrn chrr cnaa cnac cnbc cnna cnrc cnrr crab crac cran crar crbc crca crcc crcr crna haab haan haar haba haha hahn hana hanc hann hara harc harh harn harr hbar hcbc hcca hccb hccc hcch hhaa hhhh hnna hrac hran hrrc naaa naab naac naan naar naba nabc naca nacc nach naha nahr nan- nana nanb nann nara narc narh narn narr nbaa nbar nbbc nbca nbcc ncaa ncac ncar ncba ncbc ncca nccc nccn nccr ncha nchc ncna ncnc ncra ncrc nhcc nhnn nhra nhrc nnnn nrab nrca nrna nrrc raab raan raba rabb rac- raca racc rach raha rahn rahr rana ranc rann rara rarb rbbb rbbr rcac rcbc rccb rccc rchb rcnr rnbr rrah rrna rrrr