a-a a-c aaa aac aad aaf aah aao aar aas ac- aca acc acd acf ach aco acr acs ad- ada adc add adf adh ado adr ads af- afa afc afd aff afh afo afr afs aha ahc ahd ahf ahh aho ahr ahs aoa aoc aod aof aoh aoo aor aos ar- ara arc ard arf arh aro arr ars as- asa asc asd asf ash aso asr ass c-- caa cac cad caf cah cao car cas cca ccc ccd ccf cch cco ccr ccs cda cdc cdd cdf cdh cdo cdr cds cfa cfc cfd cff cfh cfo cfr cfs ch- cha chc chd chf chh cho chr chs co- coa coc cod cof coh coo cor cos cra crc crd crf crh cro crr crs csa csc csd csf csh cso csr css daa dac dad daf dah dao dar das dca dcc dcd dcf dco dcr dcs dda ddc ddd ddf ddh ddo ddr dds dfa dfc dfd dff dfh dfo dfr dfs dh- dha dhc dhd dhf dhh dho dhr dhs doa doc dod dof doh doo dor dos dra drc drd dro drr drs dsa dsc dsd dsf dsh dso dsr dss faa fac fad faf fah fao far fas fca fcc fcd fcf fco fcr fcs fda fdc fdd fdf fdh fdo fdr fds ffa ffc ffd fff ffh ffo ffr ffs fha fhc fhf fhh fho fhr fhs foa foc fof foh foo for fos fra frc frd frf frh fro frr frs fsa fsc fsd fsf fsh fso fsr fss haa hac had haf hah hao har has hca hcc hcd hcf hch hco hcr hcs hda hdc hdd hdf hdh hdo hdr hds hfa hfc hfd hff hfh hfo hfr hfs hha hhc hhd hhf hhh hho hhr hhs hoa hoc hod hof hoh hoo hor hos hr- hra hrc hrd hrf hrh hro hrr hrs hsa hsc hsd hsf hsh hsr hss oaa oac oad oaf oah oao oar oas oc- oca occ ocd ocf och oco ocr ocs oda odc odd odf odh odo odr ods of- ofa ofc ofd off ofo ofr ofs oha ohc ohd ohf ohh oho ohr ohs oo- ooa ooc ood oof ooh ooo oor oos or- ora orc ord orf orh oro orr ors os- osa osc osd osf osh oso osr oss ra- raa rac rad raf rah rao rar ras rca rcc rcd rcf rch rco rcr rcs rda rdc rdd rdf rdh rdo rdr rds rfa rfc rfd rff rfh rfo rfr rfs rh- rha rhc rhd rhf rhh rho rhr rhs roa roc rod rof roh roo ror ros rra rrc rrd rrf rrh rrr rrs rsa rsc rsd rsf rsh rso rsr rss saa sac sad saf sah sao sar sas sca scc scd scf sch sco scr scs sda sdc sdd sdf sdh sdo sdr sds sfa sfc sfd sff sfh sfo sfr sfs sh- sha shc shd shf shh sho shr shs soa soc sod sof soh soo sor sos sr- sra src srd srf srh sro srr srs ss- ssa ssc ssd ssf ssh sso ssr sss