-ic a-a a-c a-i a-t aaa aac aaf aag aai aak aan aao aas aat ac- aca acc acf acg aci ack acn aco acs act af- afa afc aff afg afi afk afn afo afs aft ag- aga agc agf agg agi agk agn ago ags agt ai- aia aic aif aig aii aik ain aio ais ait aka akc akg aki akk akn ako aks an- ana anc anf ang ani ank ann ano ans ant aoa aoc aof aog aoi aok aon aoo aos aot as- asa asc asf asg asi ask asn aso ass ast at- ata atc atf atg ati atn ato ats att c-- caa cac caf cag cai cak can cao cas cat cca ccc ccf ccg cci cck ccn cco ccs cct cfa cfc cff cfg cfi cfk cfn cfo cfs cft cga cgc cgg cgi cgn cgo cgs cgt ci- cia cic cif cig cii cik cin cio cis cit cka ckc cki cko cks ckt cn- cna cnc cnf cng cni cnn cno cns cnt co- coa coc cof cog coi cok con coo cos cot csa csc csf csg csi csk csn cso css cst cta ctc ctf ctg cti ctk ctn cto cts ctt faa fac faf fag fai fak fan fao fas fat fca fcc fcf fcg fci fck fcn fco fcs fct ffa ffc fff ffg ffi ffk ffn ffo ffs fft fga fgc fgf fgg fgi fgn fgs fgt fia fic fif fig fii fik fin fis fit fka fkc fkf fkg fki fkk fkt fna fnc fnf fng fni fnk fnn fns fnt foa foc fof fog foi fok fon foo fos fot fsa fsc fsf fsg fsi fsk fsn fso fss fst fta ftc ftf ftg fti ftk ftn fto fts ftt gaa gac gaf gag gai gak gan gao gas gat gca gcc gcf gcg gci gck gcn gco gcs gct gfa gfc gff gfi gfk gfo gfs gft gga ggc ggg ggi ggn ggo ggs ggt gia gic gif gig gii gik gin gio gis git gka gkn gko gks gkt gna gnc gnf gni gnn gno gns gnt goa goc gof gog goi gok gon goo gos got gsa gsc gsf gsg gsi gsk gsn gso gss gst gta gtc gtf gtg gti gtk gtn gto gts gtt i-f ia- iaa iac iaf iag iai ian iao ias iat ica icc icf icg ici ick icn ico ics ict ifa ifc iff ifg ifi ifn ifo ifs ift iga igc igf igg igi igk ign igo igs igt iia iic iif iii iin iio iis iit ika ikc ikf iki ikk iko iks ikt in- ina inc inf ing ini ink inn ino ins int io- ioa ioc iof iog ioi ion ioo ios iot is- isa isc isf isg isi isk isn iso iss ist ita itc itf itg iti itk itn ito its itt k-t ka- kaa kac kaf kag kai kak kan kao kas kat kca kcc kcg kci kck kcn kcs kct kfa kfc kff kfg kfi kfo kfs kga kgc kgf kgi kgo kgs kia kic kif kig kii kik kin kio kis kit kkc kki kkk kkn kks kkt kn- kna knc knf kng kni knk knn kno knt koa koc kof kog koi kok kon koo kos kot ksa ksc ksf ksg ksi ksk ksn kso kss kst kta ktc ktf ktg ktk ktn kto kts ktt n-i naa nac naf nag nai nak nan nao nas nat nca ncc ncf ncg nci nck ncn nco ncs nct nfa nfc nff nfi nfk nfn nfo nfs nft nga ngc ngf ngg ngi ngk ngn ngo ngs ngt nia nic nif nig nii nik nin nio nis nit nka nkc nkf nki nkk nkn nko nks nkt nna nnc nnf nng nni nnk nnn nno nns nnt no- noa noc nof nog noi nok non noo nos not nsa nsc nsf nsg nsi nsk nsn nso nss nst nta ntc ntf ntg nti ntk ntn nto nts ntt o-i oaa oac oaf oag oai oak oan oao oas oat oc- oca occ ocf ocg oci ock ocn oco ocs oct of- ofa ofc off ofg ofi ofn ofo ofs oft oga ogc ogf ogg ogi ogn ogo ogs ogt oia oic oif oii oik oin oio ois oit oka okc okg oki okk oko oks on- ona onc onf ong oni onk onn ono ons ont oo- ooa ooc oof oog ooi ook oon ooo oos oot os- osa osc osf osg osi osk osn oso oss ost ot- ota otc otf otg oti otk otn oto ots ott saa sac saf sag sai sak san sao sas sat sca scc scf scg sci sck scn sco scs sct sfa sfc sff sfg sfi sfk sfn sfo sfs sft sga sgc sgf sgg sgi sgk sgn sgo sgs sgt sia sic sif sig sii sik sin sio sis sit sk- ska skc skf skg ski skk sko sks skt sna snc snf sng sni snk snn sno sns snt soa soc sof sog soi sok son soo sos sot ss- ssa ssc ssf ssg ssi ssk ssn sso sss sst sta stc stf stg sti stk stn sto sts stt taa tac taf tag tai tak tan tao tas tat tca tcc tcf tcg tci tck tcn tco tcs tct tfa tfc tff tfg tfi tfk tfn tfo tfs tft tga tgc tgf tgg tgi tgk tgn tgo tgs tgt tia tic tif tig tii tik tin tio tis tit tka tkc tkg tkk tko tks tkt tna tnc tnf tng tni tnk tnn tno tns tnt to- toa toc tof tog toi tok ton too tos tot tsa tsc tsf tsg tsi tsk tsn tso tss tst tta ttc ttf ttg tti ttk ttn tto tts ttt