-al a-a a-b a-c aaa aab aac aad aah aal aan aar ab- aba abb abc abd abh abl abn abr ac- aca acb acc acd ach acl acn acr ad- ada adb adc add adh adl adn adr aha ahb ahc ahd ahh ahl ahn ahr al- ala alb alc ald alh all aln alr an- ana anb anc and anh anl ann anr ar- ara arb arc ard arh arl arn arr baa bab bac bad bah bal ban bar bba bbb bbc bbd bbh bbl bbn bbr bca bcb bcc bcd bch bcl bcn bcr bda bdb bdc bdd bdh bdl bdr bha bhb bhc bhd bhh bhl bhr bla blb blc bld blh bll bln blr bna bnb bnc bnd bnl bnn bnr bra brb brd brh brl brn brr c-- caa cab cac cad cah cal can car cba cbb cbc cbd cbh cbl cbn cbr cca ccb ccc ccd cch ccl ccn ccr cda cdb cdc cdd cdh cdl cdn cdr ch- cha chb chc chd chh chl chn chr cl- cla clb clc cld clh cll cln clr cn- cna cnb cnc cnd cnh cnl cnn cnr cra crb crc crd crh crl crn crr daa dab dac dad dah dal dan dar dba dbb dbc dbd dbh dbl dbn dbr dca dcb dcc dcd dcl dcn dcr dda ddb ddc ddd ddh ddl ddn ddr dh- dha dhb dhc dhd dhh dhl dhr dl- dla dlb dlc dld dlh dll dlr dna dnb dnc dnd dnh dnl dnn dnr dra drb drc drd drl drn drr haa hab hac had hah hal han har hba hbb hbc hbd hbh hbl hbn hbr hca hcb hcc hcd hch hcl hcn hcr hda hdb hdc hdd hdh hdl hdn hdr hha hhb hhc hhd hhh hhl hhn hhr hla hlb hlc hld hlh hll hln hlr hna hnb hnc hnd hnh hnl hnn hr- hra hrb hrc hrd hrh hrl hrn hrr la- laa lab lac lad lah lal lan lar lba lbb lbc lbd lbh lbl lbr lca lcb lcc lcd lch lcl lcn lcr lda ldb ldc ldd ldh ldl ldn ldr lha lhb lhc lhd lhh lhr lla llb llc lld lll lln llr lna lnb lnc lnd lnh lnl lnn lnr lra lrb lrc lrd lrh lrn lrr naa nab nac nad nah nal nan nar nba nbb nbc nbd nbl nbn nbr nca ncb ncc ncd nch ncl ncn ncr nda ndb ndc ndd ndh ndl ndn ndr nha nhb nhc nhd nhh nhl nhn nhr nla nlb nlc nld nlh nll nln nlr nna nnb nnc nnh nnl nnn nra nrb nrc nrd nrl nrn nrr ra- raa rab rac rad rah ral ran rar rba rbb rbc rbd rbh rbl rbn rbr rca rcb rcc rcd rch rcl rcn rcr rda rdb rdc rdd rdh rdl rdn rdr rh- rha rhb rhc rhd rhh rhl rhn rhr rla rlc rld rlh rll rln rlr rna rnb rnc rnd rnh rnn rnr rra rrb rrc rrd rrh rrl rrn rrr

-ana a-ha aaaa aaab aaac aaad aaah aaal aaan aaar aaba aabb aabc aabd aabh aabl aaca aacb aacc aacd aach aacl aacn aacr aada aadc aaha aahl aala aalc aald aall aana aand aara aarc aard abaa abab abac abad abal aban abar abb- abba abbb abbr abca abcb abcc abcd abch abcl abcn abcr abda abha abhr abla abra abrc acaa acab acac acad acan acar acba acbl acca accc accd acch acda acdb acdc acha achh achl achr acla aclc aclr acr- acra acrc acrr adaa adab adac adad adah adal adan adar adba adbc adcc adda addc addd addl addn addr adha adhd adhn adna adra ahab ahac ahad ahah ahal ahar ahdl ahha ahla ahra ahrc ahrr alaa alac alad alal alan alar alb- alba albc alca alcc ald- alda aldl alha all- alla allh alll alln allr alna ana- anaa anab anac anad anah anal anan anar anba anbb anbl anca ancc and- anda andh andl andr anha anla anlc anln anna annb anrc arab arac arad arah aral aran arar arba arbh arc- arca arch arda ardc ardl arh- arla arna arnd arr- arra arrc arrh arrr baaa baad baah baal baan baar baba babb babr bac- baca bacc bach bacn bada badb badd badh badr baha bahl bahn bahr bala balc bald ball bana banc band banh bann banr bar- bara barb barc bard barh barn barr bbad bbbb bbch bbdd bblb bbrc bcaa bcar bcbc bcca bccc bccl bcda bchd bcra bd-r bdbc bddc bddh bdna bhan bhar bhca bhcc bhdl bhra blaa blab blac blad blah blan bldc bldr blrc bnrr brab brac brad brah bran brca brcb brda brna brrr c-cd caaa caab caac caah caal caan caba cac- caca cacc cach cacr cada cadc cadd cadr caha cahl cahn cala calc cald call cana canc cand canh cann cara carb carc card carl carn carr cbac cbal cbar cbbc cbca cbcc cbcl cbcn cbcr cbdb cbdc cbdn cbha cbhl cblb cblc cbln cbna cbnd cbrd cbrh cbrl cbrn ccaa ccab ccac ccad ccar ccba ccbc ccbn ccca cccb cccc cccl ccdc ccdh ccdn ccdr ccha cchl cchr ccla cclc ccna ccnb ccnc ccnr ccra ccrc ccrl cd-r cdaa cdac cdad cdba cdda cddb cddl cddr cdna cdnb cdnc chaa chab chac chad chah chal chan char chca chch chha chlc chln chlr chnb chnc chnl chnr chra chrb chrc chrd chrn chrr clab clad clan clar clcd cldc cldr clra clrd cnaa cnac cnbc cnbl cnda cndd cnna cnrc cnrr crab crac cran crar crbc crca crcc crcr crda crdc crna d-na daab daad daal daan daar daba dabb daca dada daha dahl dahn dala dall dana dand danl dann danr dara darb darc dard darl darn darr dbar dbcc dbnl dbrn dcbc dcca dccb dccc dccl dcdb dcra dddd ddlc ddrc dhaa dhad dhal dhan dhar dhrn dlab dlbd dlha dnaa dnab dnac dnad dnah