-ic a-a a-b a-c a-i a-t aaa aab aac aaf aai aam aan aao aar aat ab- aba abb abc abf abi abm abn abo abr abt ac- aca acb acc acf aci acm acn aco acr act af- afa afb afc aff afi afm afn afo afr aft ai- aia aib aic aif aii aim ain aio air ait ama amb amc amf ami amm amn amo amr amt an- ana anb anc anf ani anm ann ano anr ant aoa aob aoc aof aoi aom aon aoo aor aot ar- ara arb arc arf ari arm arn aro arr art at- ata atb atc atf ati atm atn ato atr att baa bab bac baf bai bam ban bao bar bat bba bbb bbc bbf bbi bbm bbn bbo bbr bbt bca bcb bcc bcf bci bcm bcn bco bcr bct bfa bfb bfc bff bfi bfm bfn bfo bfr bft bi- bia bib bic bif bii bim bin bio bir bit bma bmb bmc bmf bmi bmm bmn bmo bmr bmt bna bnb bnc bnf bni bnn bno bnr bnt boa bob boc bof boi bom bon boo bor bot bra brb brf bri brm brn bro brr brt bta btb btc btf bti btm btn bto btr btt c-- caa cab cac caf cai cam can cao car cat cba cbb cbc cbf cbi cbm cbn cbo cbr cbt cca ccb ccc ccf cci ccm ccn cco ccr cct cfa cfb cfc cff cfi cfm cfn cfo cfr cft ci- cia cib cic cif cii cim cin cio cir cit cma cmb cmc cmf cmi cmm cmn cmo cmr cmt cn- cna cnb cnc cnf cni cnm cnn cno cnr cnt co- coa cob coc cof coi com con coo cor cot cra crb crc crf cri crm crn cro crr crt cta ctb ctc ctf cti ctm ctn cto ctr ctt faa fab fac faf fai fam fan fao far fat fba fbb fbc fbf fbi fbm fbn fbo fbr fbt fca fcb fcc fcf fci fcm fcn fco fcr fct ffa ffc fff ffi ffm ffn ffo ffr fft fia fib fic fif fii fim fin fir fit fma fmb fmc fmf fmi fmm fmn fmo fmr fmt fna fnb fnc fnf fni fnm fnn fnr fnt foa fob foc fof foi fom fon foo for fot fra frb frc frf fri frm frn fro frr frt fta ftb ftc ftf fti ftm ftn fto ftr ftt i-f ia- iaa iab iac iaf iai iam ian iao iar iat iba ibb ibc ibf ibi ibm ibn ibo ibr ibt ica icb icc icf ici icm icn ico icr ict ifa ifb ifc iff ifi ifm ifn ifo ifr ift iia iib iic iif iii iim iin iio iir iit im- ima imb imc imf imi imm imn imo imt in- ina inb inc inf ini inm inn ino inr int io- ioa iob ioc iof ioi iom ion ioo ior iot ir- ira irb irc irf iri irm irn iro irr irt ita itb itc itf iti itm itn ito itt m-f m-o m-r maa mab mac maf mai mam man mao mar mat mba mbb mbc mbf mbi mbm mbo mbr mbt mc- mca mcb mcc mcf mci mcm mcn mco mcr mct mfa mfb mfc mff mfi mfm mfn mfo mfr mft mi- mia mib mic mif mii mim min mio mir mit mma mmb mmc mmf mmi mmm mmn mmo mmr mmt mna mnb mnc mnf mni mnm mnn mno mnr mnt moa mob moc mof moi mom mon moo mor mot mra mrb mrc mrf mri mrm mrn mro mrr mrt mta mtb mtc mtf mti mtm mtn mto mtr mtt n-i naa nab nac naf nai nam nan nao nar nat nba nbb nbc nbf nbi nbm nbn nbo nbr nbt nca ncb ncc ncf nci ncm ncn nco ncr nct nfa nfb nfc nff nfi nfn nfo nfr nft nia nib nic nif nii nim nin nio nir nit nma nmb nmc nmi nmm nmn nmo nmr nmt nna nnb nnc nnf nni nnm nnn nno nnt no- noa nob noc nof noi nom non noo nor not nra nrb nrc nrf nri nrm nrn nro nrr nrt nta ntb ntc ntf nti ntm ntn nto ntr ntt o-i oaa oab oac oaf oai oam oan oao oar oat ob- oba obb obc obf obi obm obn obo obr obt oc- oca ocb occ ocf oci ocm ocn oco ocr oct of- ofa ofb ofc off ofi ofm ofn ofo ofr oft oia oib oic oif oii oim oin oio oir oit om- oma omb omc omf omi omm omn omo omr omt on- ona onb onc onf oni onn ono onr ont oo- ooa oob ooc oof ooi oom oon ooo oor oot or- ora orb orc orf ori orm orn oro orr ort ot- ota otb otc otf oti otm otn oto otr ott ra- raa rab rac raf rai ram ran rao rar rat rba rbb rbc rbf rbi rbm rbn rbo rbr rbt rca rcb rcc rcf rci rcm rcn rco rcr rct rfa rfb rfc rff rfi rfm rfn rfo rfr rft ria rib ric rif rii rim rin rio rir rit rma rmb rmc rmf rmi rmm rmn rmo rmr rmt rna rnb rnc rni rnm rnn rno rnr rnt roa rob roc rof roi rom ron roo ror rot rra rrb rrc rrf rri rrm rrn rrr rrt rta rtb rtc rtf rti rtm rtn rto rtr rtt taa tab tac taf tai tam tan tao tar tat tba tbb tbc tbf tbi tbm tbn tbo tbr tbt tca tcb tcc tcf tci tcm tcn tco tcr tct tfa tfb tfc tff tfi tfm tfn tfo tfr tft tia tib tic tif tii tim tin tio tir tit tma tmb tmc tmf tmi tmm tmn tmo tmr tmt tna tnb tnc tnf tni tnm tnn tno tnr tnt to- toa tob