-ic a-a a-b a-c a-i aaa aab aac aad aaf aai aan aar ab- aba abb abc abd abf abi abn abr ac- aca acb acc acd acf aci acn acr ad- ada adb adc add adf adi adn adr af- afa afb afc afd aff afi afn afr ai- aia aib aic aid aif aii ain air an- ana anb anc and anf ani ann anr ar- ara arb arc ard arf ari arn arr baa bab bac bad baf bai ban bar bba bbb bbc bbd bbf bbi bbn bbr bca bcb bcc bcd bcf bci bcn bcr bda bdb bdc bdd bdf bdi bdr bfa bfb bfc bfd bff bfi bfn bfr bi- bia bib bic bid bif bii bin bir bna bnb bnc bnd bnf bni bnn bnr bra brb brd brf bri brn brr c-- caa cab cac cad caf cai can car cba cbb cbc cbd cbf cbi cbn cbr cca ccb ccc ccd ccf cci ccn ccr cda cdb cdc cdd cdf cdi cdn cdr cfa cfb cfc cfd cff cfi cfn cfr ci- cia cib cic cid cif cii cin cir cn- cna cnb cnc cnd cnf cni cnn cnr cra crb crc crd crf cri crn crr daa dab dac dad daf dai dan dar dba dbb dbc dbd dbf dbi dbn dbr dca dcb dcc dcd dcf dci dcn dcr dda ddb ddc ddd ddf ddi ddn ddr dfa dfb dfc dfd dff dfi dfn dfr di- dia dib dic did dif dii din dir dna dnb dnc dnd dnf dni dnn dnr dra drb drc drd dri drn drr faa fab fac fad faf fai fan far fba fbb fbc fbd fbf fbi fbn fbr fca fcb fcc fcd fcf fci fcn fcr fda fdb fdc fdd fdf fdi fdn fdr ffa ffc ffd fff ffi ffn ffr fia fib fic fid fif fii fin fir fna fnb fnc fnd fnf fni fnn fnr fra frb frc frd frf fri frn frr i-d i-f ia- iaa iab iac iad iaf iai ian iar iba ibb ibc ibd ibf ibi ibn ibr ica icb icc icd icf ici icn icr ida idb idc idd idf idi idn idr ifa ifb ifc ifd iff ifi ifn ifr iia iib iic iid iif iii iin iir in- ina inb inc ind inf ini inn inr ir- ira irb irc ird irf iri irn irr n-i naa nab nac nad naf nai nan nar nba nbb nbc nbd nbf nbi nbn nbr nca ncb ncc ncd ncf nci ncn ncr nda ndb ndc ndd ndf ndi ndn ndr nfa nfb nfc nfd nff nfi nfn nfr nia nib nic nid nif nii nin nir nna nnb nnc nnf nni nnn nra nrb nrc nrd nrf nri nrn nrr ra- raa rab rac rad raf rai ran rar rba rbb rbc rbd rbf rbi rbn rbr rca rcb rcc rcd rcf rci rcn rcr rda rdb rdc rdd rdf rdi rdn rdr rfa rfb rfc rfd rff rfi rfn rfr ria rib ric rid rif rii rin rir rna rnb rnc rnd rni rnn rnr rra rrb rrc rrd rrf rri rrn rrr

-ana a-ii aaaa aaab aaac aaad aaaf aaai aaan aaar aaba aabb aabc aabd aabi aaca aacb aacc aacd aacf aaci aacn aacr aada aadc aadi aafa aafb aafc aafd aaff aafi aaib aaic aaii aain aana aand aani aara aarc aard aari abaa abab abac abad abaf abai aban abar abb- abba abbb abbi abbr abca abcb abcc abcd abcf abci abcn abcr abda abdi abff abia abib abic abid abin abir abra abrc abri acaa acab acac acad acai acan acar acba acca accc accd accf acci acda acdb acdc acdf acdi acfc acfd acfi aci- acia acic acid acif acin acir acr- acra acrc acri acrr adaa adab adac adad adai adan adar adba adbc adbi adcc adci adda addc addd addi addn addr adfa adfc adia adib adic adif adin adir adna adni adra afaa afad afan afar afca afcb afcc afci afdb afdc affa affc affi afia afib afid afif afin afir afr- afra afrc afri aiai aian aiba aibn aica aicc aicd aicf aicr aida aidb aidc aidi aidr aifd aiff aiia aiib aiic aiid aiin aiir aina ainc aind aini aira aird airi ana- anaa anab anac anad anai anan anar anba anbb anbi anca ancc and- anda andi andr anfa ania anib anic anif anin anir anna annb anni anrc anri arab arac arad araf arai aran arar arba arbi arc- arca arci arda ardc ardf ardi arfa arfb arfc arff aria arib arid arif arii arin arna arnd arni arr- arra arrc arri arrr ba-i baaa baad baaf baan baar baba babb babi babr bac- baca bacc baci bacn bada badb badd badi badr bafc baff baia baib baic baid bain bair bana banc band bani bann banr bar- bara barb barc bard barf bari barn barr bbad bbbb bbci bbdd bbfc bbfn bbin bbrc bcaa bcar bcbc bcca bccc bcci bcda bcfc bcia bcra bd-r bdbc bddc bdii bdin bdna bfca biad biaf bian biar biba bibb bibi bica bicc bici bida bidi bidr bifa biff bifi biin bin- bina binc bind bini binn bira birb bird biri birn birr bnai bnib bnin bnrr brab brac brad braf brai bran brca brcb brda brfc bria bric brid brin brna brrr c-cd caaa caab caac caaf caan caba cabf cabi cac- caca cacc caci cacr cada cadc cadd cadi cadr cafa cafb cafc caff caia caib caic caid cain cair cana canc cand cani cann cara carb carc card carf cari carn carr cbac cbar cbbc cbca cbcc cbcn cbcr cbdb cbdc cbdi cbdn cbfb cbfc cbia cbid cbir cbna cbnd cbrd cbrn ccaa ccab ccac ccad ccaf ccai ccar ccba ccbc ccbn ccca cccb cccc cccf ccci ccdc ccdf ccdi ccdn ccdr ccfa ccfc ccfd ccff ccfi ccic ccid ccii ccir ccna ccnb ccnc ccnf ccni ccnr ccra ccrc ccrf ccri