-ic a-a a-c a-i a-t aaa aac aad aaf aai aar aas aat ac- aca acc acd acf aci acr acs act ad- ada adc add adf adi adr ads adt af- afa afc afd aff afi afr afs aft ai- aia aic aid aif aii air ais ait ar- ara arc ard arf ari arr ars art as- asa asc asd asf asi asr ass ast at- ata atc atd atf ati atr ats att c-- caa cac cad caf cai car cas cat cca ccc ccd ccf cci ccr ccs cct cda cdc cdd cdf cdi cdr cds cdt cfa cfc cfd cff cfi cfr cfs cft ci- cia cic cid cif cii cir cis cit cra crc crd crf cri crr crs crt csa csc csd csf csi csr css cst cta ctc ctd ctf cti ctr cts ctt daa dac dad daf dai dar das dat dca dcc dcd dcf dci dcr dcs dct dda ddc ddd ddf ddi ddr dds ddt dfa dfc dfd dff dfi dfr dfs dft di- dia dic did dif dii dir dis dit dra drc drd dri drr drs drt dsa dsc dsd dsf dsi dsr dss dst dta dtc dtd dtf dti dtr dts dtt faa fac fad faf fai far fas fat fca fcc fcd fcf fci fcr fcs fct fda fdc fdd fdf fdi fdr fds fdt ffa ffc ffd fff ffi ffr ffs fft fia fic fid fif fii fir fis fit fra frc frd frf fri frr frs frt fsa fsc fsd fsf fsi fsr fss fst fta ftc ftd ftf fti ftr fts ftt i-d i-f ia- iaa iac iad iaf iai iar ias iat ica icc icd icf ici icr ics ict ida idc idd idf idi idr ids idt ifa ifc ifd iff ifi ifr ifs ift iia iic iid iif iii iir iis iit ir- ira irc ird irf iri irr irs irt is- isa isc isd isf isi isr iss ist ita itc itd itf iti its itt ra- raa rac rad raf rai rar ras rat rca rcc rcd rcf rci rcr rcs rct rda rdc rdd rdf rdi rdr rds rdt rfa rfc rfd rff rfi rfr rfs rft ria ric rid rif rii rir ris rit rra rrc rrd rrf rri rrr rrs rrt rsa rsc rsd rsf rsi rsr rss rst rta rtc rtd rtf rti rtr rts rtt saa sac sad saf sai sar sas sat sca scc scd scf sci scr scs sct sda sdc sdd sdf sdi sdr sds sdt sfa sfc sfd sff sfi sfr sfs sft sia sic sid sif sii sir sis sit sr- sra src srd srf sri srr srs srt ss- ssa ssc ssd ssf ssi ssr sss sst sta stc std stf sti str sts stt taa tac tad taf tai tar tas tat tca tcc tcd tcf tci tcr tcs tct tda tdc tdd tdf tdi tdr tds tdt tfa tfc tfd tff tfi tfr tfs tft tia tic tid tif tii tir tis tit tra trc trd trf tri trr trs trt tsa tsc tsd tsf tsi tsr tss tst tta ttc ttd ttf tti ttr tts ttt