-ic a-a a-b a-c a-i a-t aaa aab aac aaf aai aan aao aas aat ab- aba abb abc abf abi abn abo abs abt ac- aca acb acc acf aci acn aco acs act af- afa afb afc aff afi afn afo afs aft ai- aia aib aic aif aii ain aio ais ait an- ana anb anc anf ani ann ano ans ant aoa aob aoc aof aoi aon aoo aos aot as- asa asb asc asf asi asn aso ass ast at- ata atb atc atf ati atn ato ats att baa bab bac baf bai ban bao bas bat bba bbb bbc bbf bbi bbn bbo bbs bbt bca bcb bcc bcf bci bcn bco bcs bct bfa bfb bfc bff bfi bfn bfo bfs bft bi- bia bib bic bif bii bin bio bis bit bna bnb bnc bnf bni bnn bno bns bnt boa bob boc bof boi bon boo bos bot bsa bsb bsc bsf bsi bsn bso bss bst bta btb btc btf bti btn bto bts btt c-- caa cab cac caf cai can cao cas cat cba cbb cbc cbf cbi cbn cbo cbs cbt cca ccb ccc ccf cci ccn cco ccs cct cfa cfb cfc cff cfi cfn cfo cfs cft ci- cia cib cic cif cii cin cio cis cit cn- cna cnb cnc cnf cni cnn cno cns cnt co- coa cob coc cof coi con coo cos cot csa csb csc csf csi csn cso css cst cta ctb ctc ctf cti ctn cto cts ctt faa fab fac faf fai fan fao fas fat fba fbb fbc fbf fbi fbn fbo fbs fbt fca fcb fcc fcf fci fcn fco fcs fct ffa ffc fff ffi ffn ffo ffs fft fia fib fic fif fii fin fis fit fna fnb fnc fnf fni fnn fns fnt foa fob foc fof foi fon foo fos fot fsa fsb fsc fsf fsi fsn fso fss fst fta ftb ftc ftf fti ftn fto fts ftt i-f ia- iaa iab iac iaf iai ian iao ias iat iba ibb ibc ibf ibi ibn ibo ibs ibt ica icb icc icf ici icn ico ics ict ifa ifb ifc iff ifi ifn ifo ifs ift iia iib iic iif iii iin iio iis iit in- ina inb inc inf ini inn ino ins int io- ioa iob ioc iof ioi ion ioo ios iot is- isa isb isc isf isi isn iso iss ist ita itb itc itf iti itn ito its itt n-i naa nab nac naf nai nan nao nas nat nba nbb nbc nbf nbi nbn nbo nbs nbt nca ncb ncc ncf nci ncn nco ncs nct nfa nfb nfc nff nfi nfn nfo nfs nft nia nib nic nif nii nin nio nis nit nna nnb nnc nnf nni nnn nno nns nnt no- noa nob noc nof noi non noo nos not nsa nsb nsc nsf nsi nsn nso nss nst nta ntb ntc ntf nti ntn nto nts ntt o-i oaa oab oac oaf oai oan oao oas oat ob- oba obb obc obf obi obn obo obs obt oc- oca ocb occ ocf oci ocn oco ocs oct of- ofa ofb ofc off ofi ofn ofo ofs oft oia oib oic oif oii oin oio ois oit on- ona onb onc onf oni onn ono ons ont oo- ooa oob ooc oof ooi oon ooo oos oot os- osa osb osc osf osi osn oso oss ost ot- ota otb otc otf oti otn oto ots ott saa sab sac saf sai san sao sas sat sba sbb sbc sbf sbi sbn sbo sbs sbt sca scb scc scf sci scn sco scs sct sfa sfb sfc sff sfi sfn sfo sfs sft sia sib sic sif sii sin sio sis sit sna snb snc snf sni snn sno sns snt soa sob soc sof soi son soo sos sot ss- ssa ssb ssc ssf ssi ssn sso sss sst sta stb stc stf sti stn sto sts stt taa tab tac taf tai tan tao tas tat tba tbb tbc tbf tbi tbn tbo tbs tbt tca tcb tcc tcf tci tcn tco tcs tct tfa tfb tfc tff tfi tfn tfo tfs tft tia tib tic tif tii tin tio tis tit tna tnb tnc tnf tni tnn tno tns tnt to- toa tob toc tof toi ton too tos tot tsa tsb tsc tsf tsi tsn tso tss tst tta ttb ttc ttf tti ttn tto tts ttt

-ana a-ii aaaa aaab aaac aaaf aaai aaan aaas aaba aabb aabc aabi aabt aaca aacb aacc aacf aaci aacn aaco aacs aact aafa aafb aafc aaff aafi aaib aaic aaii aain aais aana aani aaon aaoo aasa aasc aasf aasi aass aast aata aatc aatf aatt abaa abab abac abaf abai aban abas abat abb- abba abbb abbi abbo abbs abbt abca abcb abcc abcf abci abcn abcs abct abff abia abib abic abin abis abit aboa abob abof abon aboo abos abot abs- absa absf absi abss abta abts ac-t acaa acab acac acai acan acas acat acba acca accc accf acci acco accs acct acfc acfi acfs acft aci- acia acic acif acin acis acoa acon acos acot acsa acsc acsi acss acst acta actc actf acti acto acts actt afaa afan afao afat afbs afca afcb afcc afci afcs affa affc affi affo affs afft afia afib afif afin afis afit afoa afoo afsa afsb afsc afst afta aftc aftn afts aiai aian aias aiba aibn aibo aica aicc aicf aics aiff aifs aiia aiib aiic aiin aina ainc aini aino ains aint aioc aioi aion aisa aisb aisi aiso aist aita aitf aiti aits aitt ana- anaa anab anac anai anan anao anas anat anba anbb anbi anbo anca ancc anco anct anfa anfo ania anib anic anif anin anio anis anit anna annb anni anno anns annt ano- anoa anon anos ansa ansf