-ic a-a a-c a-i a-t aaa aac aaf aai aak aar aas aat ac- aca acc acf aci ack acr acs act af- afa afc aff afi afk afr afs aft ai- aia aic aif aii aik air ais ait aka akc aki akk akr aks ar- ara arc arf ari ark arr ars art as- asa asc asf asi ask asr ass ast at- ata atc atf ati atr ats att c-- caa cac caf cai cak car cas cat cca ccc ccf cci cck ccr ccs cct cfa cfc cff cfi cfk cfr cfs cft ci- cia cic cif cii cik cir cis cit cka ckc cki cks ckt cra crc crf cri crk crr crs crt csa csc csf csi csk csr css cst cta ctc ctf cti ctk ctr cts ctt faa fac faf fai fak far fas fat fca fcc fcf fci fck fcr fcs fct ffa ffc fff ffi ffk ffr ffs fft fia fic fif fii fik fir fis fit fka fkc fkf fki fkk fkt fra frc frf fri frk frr frs frt fsa fsc fsf fsi fsk fsr fss fst fta ftc ftf fti ftk ftr fts ftt i-f ia- iaa iac iaf iai iar ias iat ica icc icf ici ick icr ics ict ifa ifc iff ifi ifr ifs ift iia iic iif iii iir iis iit ika ikc ikf iki ikk ikr iks ikt ir- ira irc irf iri irk irr irs irt is- isa isc isf isi isk isr iss ist ita itc itf iti itk its itt k-t ka- kaa kac kaf kai kak kar kas kat kca kcc kci kck kcr kcs kct kfa kfc kff kfi kfs kia kic kif kii kik kir kis kit kkc kki kkk kkr kks kkt kra krc krf kri krk krr krs krt ksa ksc ksf ksi ksk ksr kss kst kta ktc ktf ktk ktr kts ktt ra- raa rac raf rai rak rar ras rat rca rcc rcf rci rcr rcs rct rfa rfc rff rfi rfk rfr rfs rft ria ric rif rii rik rir ris rit rkc rkf rkk rks rkt rra rrc rrf rri rrk rrr rrs rrt rsa rsc rsf rsi rsk rsr rss rst rta rtc rtf rti rtk rtr rts rtt saa sac saf sai sak sar sas sat sca scc scf sci sck scr scs sct sfa sfc sff sfi sfk sfr sfs sft sia sic sif sii sik sir sis sit sk- ska skc skf ski skk skr sks skt sr- sra src srf sri srk srr srs srt ss- ssa ssc ssf ssi ssk ssr sss sst sta stc stf sti stk str sts stt taa tac taf tai tak tar tas tat tca tcc tcf tci tck tcr tcs tct tfa tfc tff tfi tfk tfr tfs tft tia tic tif tii tik tir tis tit tka tkc tkk tkr tks tkt tra trc trf tri trk trr trs trt tsa tsc tsf tsi tsk tsr tss tst tta ttc ttf tti ttk ttr tts ttt