a-a a-b a-c aaa aab aac aad aah aan aap aar ab- aba abb abc abd abh abn abp abr ac- aca acb acc acd ach acn acp acr ad- ada adb adc add adh adn adp adr aha ahb ahc ahd ahh ahn ahp ahr an- ana anb anc and anh ann anp anr ap- apa apb apc apd aph apn app apr ar- ara arb arc ard arh arn arp arr b-p baa bab bac bad bah ban bap bar bba bbb bbc bbd bbh bbn bbp bbr bca bcb bcc bcd bch bcn bcp bcr bda bdb bdc bdd bdh bdp bdr bha bhb bhc bhd bhh bhp bhr bna bnb bnc bnd bnn bnp bnr bpa bpb bpc bpd bph bpn bpp bpr bra brb brd brh brn brp brr c-- caa cab cac cad cah can cap car cba cbb cbc cbd cbh cbn cbp cbr cca ccb ccc ccd cch ccn ccp ccr cda cdb cdc cdd cdh cdn cdp cdr ch- cha chb chc chd chh chn chp chr cn- cna cnb cnc cnd cnh cnn cnp cnr cpa cpb cpc cpd cph cpn cpp cpr cra crb crc crd crh crn crp crr daa dab dac dad dah dan dap dar dba dbb dbc dbd dbh dbn dbp dbr dca dcb dcc dcd dcn dcp dcr dda ddb ddc ddd ddh ddn ddp ddr dh- dha dhb dhc dhd dhh dhp dhr dna dnb dnc dnd dnh dnn dnp dnr dpa dpb dpc dpd dph dpn dpp dpr dra drb drc drd drn drp drr haa hab hac had hah han hap har hba hbb hbc hbd hbh hbn hbp hbr hca hcb hcc hcd hch hcn hcp hcr hda hdb hdc hdd hdh hdn hdp hdr hha hhb hhc hhd hhh hhn hhp hhr hna hnb hnc hnd hnh hnn hpa hpb hpc hpd hph hpn hpp hpr hr- hra hrb hrc hrd hrh hrn hrp hrr naa nab nac nad nah nan nap nar nba nbb nbc nbd nbn nbp nbr nca ncb ncc ncd nch ncn ncp ncr nda ndb ndc ndd ndh ndn ndp ndr nha nhb nhc nhd nhh nhn nhp nhr nna nnb nnc nnh nnn nnp npa npb npc npd nph npn npp npr nra nrb nrc nrd nrn nrp nrr p-p paa pab pac pad pah pan pap par pba pbb pbc pbd pbn pbp pbr pca pcb pcc pcd pch pcn pcp pcr pda pdb pdc pdd pdh pdn pdp pdr pha phb phc phd phn php phr pn- pna pnb pnc pnd pnh pnn pnp pnr ppa ppb ppc ppd pph ppn ppp ppr pra prb prc prd prh prn prp prr ra- raa rab rac rad rah ran rap rar rba rbb rbc rbd rbh rbn rbp rbr rca rcb rcc rcd rch rcn rcp rcr rda rdb rdc rdd rdh rdn rdp rdr rh- rha rhb rhc rhd rhh rhn rhp rhr rna rnb rnc rnd rnh rnn rnp rnr rpa rpb rpc rpd rph rpn rpp rpr rra rrb rrc rrd rrh rrn rrp rrr

-ana a-ha aaaa aaab aaac aaad aaah aaan aaap aaar aaba aabb aabc aabd aabh aabp aaca aacb aacc aacd aach aacn aacp aacr aada aadc aaha aana aand aanp aapa aapc aaph aara aarc aard aarp abaa abab abac abad aban abap abar abb- abba abbb abbr abca abcb abcc abcd abch abcn abcp abcr abda abha abhr abpa abpc abpd abpn abpp abpr abra abrc acaa acab acac acad acan acap acar acba acca accc accd acch accp acda acdb acdc acdp acha achh achp achr acpa acpd acpr acr- acra acrc acrr adaa adab adac adad adah adan adap adar adba adbc adcc adda addc addd addn addr adha adhd adhn adna adnp adp- adra ahab ahac ahad ahah ahar ahha ahra ahrc ahrr ana- anaa anab anac anad anah anan anap anar anba anbb anca ancc and- anda andh andr anha anna annb anp- anpa anpp anpr anrc apac apah apan apap apar apba apbr apca apcb apcc apcd apcn apcr apda apdd aph- apha aphc apna appa appc appd apph appr apra aprc aprn arab arac arad arah aran arap arar arba arbh arc- arca arch arda ardc arh- arna arnd arpa arr- arra arrc arrh arrr baaa baad baah baan baar baba babb babr bac- baca bacc bach bacn bada badb badd badh badr baha bahn bahr bana banc band banh bann banp banr bapa bapc bapp bar- bara barb barc bard barh barn barr bbad bbbb bbch bbdd bbpr bbrc bcaa bcap bcar bcbc bcbp bcca bccc bcda bchd bcpp bcra bd-r bdbc bddc bddh bdna bdpc bhan bhar bhca bhcc bhra bnpp bnrr bpcp bpda bphc bprc bprd brab brac brad brah bran brca brcb brda brna brrr c-cd caaa caab caac caah caan caap caba cac- caca cacc cach cacr cada cadc cadd cadr caha cahn cana canc cand canh cann canp capa capb capc capd caph capn capp cara carb carc card carn carp carr cbac cbar cbbc cbca cbcc cbcn cbcp cbcr cbdb cbdc cbdn cbha cbna cbnd cbpc cbpp cbrd cbrh cbrn ccaa ccab ccac ccad ccap ccar ccba ccbc ccbn ccca cccb cccc cccp ccdc ccdh ccdn ccdp ccdr ccha cchp cchr ccna ccnb ccnc ccnp ccnr ccpa ccpn ccpp ccpr ccra ccrc ccrp cd-r cdaa cdac cdad cdba cdda cddb cddr cdna cdnb cdnc chaa chab chac chad chah chan chap char chbp chca chch chcp chha chnb chnc chnr chpa chpp chpr chra chrb chrc chrd chrn chrp chrr cnaa cnac cnap cnbc cnbp cncp cnda cndd cndp cnna cnpa cnrc cnrr cpaa cpac cpad cpan cpap cpbc cpca cpha cpnb cppa cppd crab crac cran crap crar crbc crca crcc crcr crda crdc crna crpc d-na daab daad daan daap daar daba dabb dabp daca dada daha dahn dahp dana dand dann danr dapa dapp dara darb darc dard darn darp darr dbar dbcc dbcp dbpc dbpd dbrn