-ic a-a a-b a-c a-i a-t aaa aab aac aag aai aak aan aar aas aat ab- aba abb abc abg abi abk abn abr abs abt ac- aca acb acc acg aci ack acn acr acs act ag- aga agb agc agg agi agk agn agr ags agt ai- aia aib aic aig aii aik ain air ais ait aka akb akc akg aki akk akn akr aks an- ana anb anc ang ani ank ann anr ans ant ar- ara arb arc arg ari ark arn arr ars art as- asa asb asc asg asi ask asn asr ass ast at- ata atb atc atg ati atn atr ats att baa bab bac bag bai bak ban bar bas bat bba bbb bbc bbg bbi bbk bbn bbr bbs bbt bca bcb bcc bcg bci bck bcn bcr bcs bct bga bgb bgc bgg bgi bgk bgn bgr bgs bgt bi- bia bib bic big bii bik bin bir bis bit bka bkb bkc bkg bkk bkn bkr bks bkt bna bnb bnc bng bni bnk bnn bnr bns bnt bra brb brg bri brk brn brr brs brt bsa bsb bsc bsg bsi bsk bsn bsr bss bst bta btb btc btg bti btk btn btr bts btt c-- caa cab cac cag cai cak can car cas cat cba cbb cbc cbg cbi cbk cbn cbr cbs cbt cca ccb ccc ccg cci cck ccn ccr ccs cct cga cgb cgc cgg cgi cgn cgr cgs cgt ci- cia cib cic cig cii cik cin cir cis cit cka ckb ckc cki cks ckt cn- cna cnb cnc cng cni cnn cnr cns cnt cra crb crc crg cri crk crn crr crs crt csa csb csc csg csi csk csn csr css cst cta ctb ctc ctg cti ctk ctn ctr cts ctt gaa gab gac gag gai gak gan gar gas gat gba gbc gbg gbi gbk gbn gbr gbs gbt gca gcb gcc gcg gci gck gcn gcr gcs gct gga ggb ggc ggg ggi ggn ggr ggs ggt gia gib gic gig gii gik gin gir gis git gka gkb gkn gks gkt gna gnb gnc gni gnn gnr gns gnt gra grb grc grg gri grk grn grr grs grt gsa gsb gsc gsg gsi gsk gsn gsr gss gst gta gtb gtc gtg gti gtk gtn gtr gts gtt ia- iaa iab iac iag iai ian iar ias iat iba ibb ibc ibg ibi ibk ibn ibr ibs ibt ica icb icc icg ici ick icn icr ics ict iga igb igc igg igi igk ign igr igs igt iia iib iic iii iin iir iis iit ika ikb ikc iki ikk ikr iks ikt in- ina inb inc ing ini ink inn inr ins int ir- ira irb irc irg iri irk irn irr irs irt is- isa isb isc isg isi isk isn isr iss ist ita itb itc itg iti itk itn its itt k-t ka- kaa kab kac kag kai kak kan kar kas kat kba kbb kbc kbi kbk kbn kbr kbs kca kcb kcc kcg kci kck kcn kcr kcs kct kga kgb kgc kgi kgs kia kib kic kig kii kik kin kir kis kit kkb kkc kki kkk kkn kkr kks kkt kn- kna knc kng kni knk knn knr knt kra krc krg kri krk krn krr krs krt ksa ksb ksc ksg ksi ksk ksn ksr kss kst kta ktb ktc ktg ktk ktn ktr kts ktt n-i naa nab nac nag nai nak nan nar nas nat nba nbb nbc nbg nbi nbk nbn nbr nbs nbt nca ncb ncc ncg nci nck ncn ncr ncs nct nga ngb ngc ngg ngi ngk ngn ngs ngt nia nib nic nig nii nik nin nir nis nit nka nkc nki nkk nkn nkr nks nkt nna nnb nnc nng nni nnk nnn nns nnt nra nrb nrc nrg nri nrk nrn nrr nrs nrt nsa nsb nsc nsg nsi nsk nsn nsr nss nst nta ntb ntc ntg nti ntk ntn ntr nts ntt ra- raa rab rac rag rai rak ran rar ras rat rba rbb rbc rbg rbi rbk rbn rbr rbs rbt rca rcb rcc rcg rci rcn rcr rcs rct rga rgb rgc rgg rgi rgk rgn rgr rgs rgt ria rib ric rig rii rik rin rir ris rit rkb rkc rkg rkk rks rkt rna rnb rnc rng rni rnn rnr rns rnt rra rrb rrc rrg rri rrk rrn rrr rrs rrt rsa rsb rsc rsg rsi rsk rsn rsr rss rst rta rtb rtc rtg rti rtk rtn rtr rts rtt saa sab sac sag sai sak san sar sas sat sba sbb sbc sbg sbi sbk sbn sbr sbs sbt sca scb scc scg sci sck scn scr scs sct sga sgb sgc sgg sgi sgk sgn sgr sgs sgt sia sib sic sig sii sik sin sir sis sit sk- ska skb skc skg ski skk skr sks skt sna snb snc sng sni snk snn snr sns snt sr- sra srb src srg sri srk srn srr srs srt ss- ssa ssb ssc ssg ssi ssk ssn ssr sss sst sta stb stc stg sti stk stn str sts stt taa tab tac tag tai tak tan tar tas tat tba tbb tbc tbg tbi tbk tbn tbr tbs tbt tca tcb tcc tcg tci tck tcn tcr tcs tct tga tgb tgc tgg tgi tgk tgn tgr tgs tgt tia tib tic tig tii tik tin tir tis tit tka tkb tkc tkg tkk tkr tks tkt tna tnb tnc tng tni tnk tnn tnr tns tnt tra trb trc trg tri trk trn trr trs trt tsa tsb tsc tsg tsi tsk tsn tsr tss tst tta ttb ttc ttg tti ttk ttn ttr tts ttt