a-ii aaaa aaab aaac aaai aaal aaar aaas aaba aabb aabc aabi aabl aaca aacb aacc aaci aacl aacr aacs aaib aaic aaii aais aala aalc aali aall aals aara aarc aari aars aasa aasc aasi aass abaa abab abac abai abal abar abas abb- abba abbb abbi abbr abbs abca abcb abcc abci abcl abcr abcs abia abib abic abil abir abis abla abls abra abrc abri abrs abs- absa absi absl abss acaa acab acac acai acar acas acba acbl acca accc acci accs aci- acia acic acir acis acla aclc acli aclr acls acr- acra acrc acri acrr acrs acsa acsc acsi acsl acss aiai aias aiba aibl aica aicc aicr aics aiia aiib aiic aiir aila aili ails aira airi airs aisa aisb aisi aisl aisr alaa alac alai alal alar alas alb- alba albc albi albs alca alcc alcs ali- alia alib alii alil alir alis all- alla alli alll allr alls alsa alsc arab arac arai aral arar aras arba arbi arbs arc- arca arci arcs aria arib arii aril aris arla arli arr- arra arrc arri arrr arrs ars- arsa arsc arsi asaa asab asac asai asal asar asas asba asc- asca ascb ascc asci ascl ascr asia asic asii asil asir asis asla asli aslr asra asrc asrs assa assc assi assl assr asss ba-i baaa baal baar baas baba babb babi babr babs bac- baca bacc baci bacs baia baib baic bail bair bais bala balc bali ball bals bar- bara barb barc bari barr bars basa basc basi bass bbas bbbb bbbs bbci bblb bbls bbrc bcaa bcar bcas bcbc bcbs bcca bccc bcci bccl bccs bcia bcis bcra bcrs bcsa bcsc bcsl bcss bial biar bias biba bibb bibi bibl bibs bica bicc bici bics biis bila bili bill bils bira birb biri birl birr birs bis- bisa bisc bisl biss blaa blab blac blas blic blir blis blls blrc blss brab brac brai bras brca brcb bria bric bril bris brls brrr brrs brsb brsr bsaa bsac bsas bsci bscs bsic bslc bsra bssc caaa caab caac caal caas caba cabi cabs cac- caca cacc caci cacr caia caib caic cail cair cais cala calc cali call cals cara carb carc cari carl carr cars casa casb casc casi casl casr cass cbac cbal cbar cbbc cbbs cbca cbcc cbcl cbcr cbcs cbia cbir cblb cblc cbrl cbsa cbsc cbsi ccaa ccab ccac ccai ccar ccas ccba ccbc ccca cccb cccc ccci cccl cccs ccic ccii ccil ccir ccis ccla cclc ccli ccls ccra ccrc ccri ccrl ccrs ccsa ccsi ccsl ccss ciaa cial ciar cias ciba cibc cibi cica cicc cici cicr cics ciia ciii ciis cila cili cill cils cira cirb circ ciri cirl cirr cirs cis- cisa cisc cisl cisr ciss clab clai clar clas clib clic clii clir clis clra clri clrs clsa clsc crab crac crai crar cras crbc crca crcc crcr cria crib cric cris crls crsa crss csaa csab csac csar csas cscb cscc csci cscl cscr cscs csia csib csir csis csla cslr csra csrc csrs cssa cssr iaaa iaac iaai iaal iaas iaba iaca iacc iacr iacs iaia iais iala iall ials iara iarc iars iasa iasc iasi iasr ibac ibar ibas ibca ibcs ibia ibis ibra ibrc ibri ibsa ibss icaa icab icac icai ical icar icas icbc icbs icca iccb iccc icci iccl iccr iccs icis icll iclr icra icrc icrr icrs icsa icsb icsc icsi icsr icss iiac iias iica iiii iiis iila iira iirc iirs iisc iisi iisr ilac ilal ilar ilas ilbc ilca ilia ilic ilir ilis ill- illa illi ills ilsa irac irai iral irar iras irca ircc ircs iri- iria iric iril iris irla irlb irra irrc irri irrs irsa is-a isac isai isal isar isas isba isbl isca iscc isci iscr iscs isia isic isil isis isla isls isra isri issa issc issi issr isss laaa laac laal laar laas laba labi labr labs laca lacc laci lacl lacs laia laic lail lair lais lala lali lall lara larb larc lari larr lars lasa lasi lass lbar lbcc lbia lblr lbrs lbsc lcac lcbc lcca lccc lccs lcia lcis lcls lcra lcrl lcrs lcsc lcsr liac liar lias liba libc libr libs lica licr lics liia liii liir liis lila lilb lili lill lils lira lirc liri lirl lirr lirs lisa lisi liss llbs llcc llcs lllc llll lrac lral lrba lrcs lric lrrc lrrr ls-r lscb lscs lsla lsrc lssa lssr raab raas raba rabb rabi rabl rabs rac- raca racc raci racs raia raic raii rail rair rais rala ralb rall rara rarb rari rars rasa rasc rasi rasl rass rbbb rbbr rbbs rbcl rbis rbsl rbss rcac rcas rcbc rccb rccc rccs rcic rcis rcls rcsa rcsc rcsi rcsl rcss riaa riab riai rial rias rib- riba ribs rica ricc rics riia riis rila rill riri rirs risa risc risi riss rlab rlcs rlls rras rrrr rsaa rsai rsbi rscc rscs rsis rslc rssa rssl s-ib s-ic s-ii sa-c saab saac saal saar saas saba sabb sabc sabi sabr sabs saca sacc saci sacr sacs saia saic sail sair sais sala salc sali sall sals sara sarc sari sarl sarr sars sasa sasc sasi sasl sass sbaa sbac sbai sbar sbas sbbs sbca sbcc sbcs sbia sbic sbsa sbsi scaa scab scac scai scal scar scas scba scbi sccc sccl sccs sci- scia scic scil scir scis scl- sclc scls scr- scra scrc scri scrs scsa scsc scsi scsl scsr siaa siab siac siai sial sias siba sibc sibi sibs sica sicc sici sics sil- sila silc sili sill sils sira sirc siri sirr sirs sisa sisc sisi siss sl-i slaa slab slac slai slas slcc slib slic slir slrc slrs slsa slsc sras srbc srcc srib sris ssaa ssab ssac ssas ssbr ssca sscc ssci sscs ssis ssla sslc ssra ssrc ssri ssrl ssrs sssa sssb sssc sssi ssss