a-a a-c aaa aac aaf aah aao aap aar aas ac- aca acc acf ach aco acp acr acs af- afa afc aff afh afo afp afr afs aha ahc ahf ahh aho ahp ahr ahs aoa aoc aof aoh aoo aop aor aos ap- apa apc apf aph apo app apr aps ar- ara arc arf arh aro arp arr ars as- asa asc asf ash aso asp asr ass c-- caa cac caf cah cao cap car cas cca ccc ccf cch cco ccp ccr ccs cfa cfc cff cfh cfo cfp cfr cfs ch- cha chc chf chh cho chp chr chs co- coa coc cof coh coo cop cor cos cpa cpc cpf cph cpo cpp cpr cps cra crc crf crh cro crp crr crs csa csc csf csh cso csp csr css faa fac faf fah fao fap far fas fca fcc fcf fco fcp fcr fcs ffa ffc fff ffh ffo ffp ffr ffs fha fhc fhf fhh fho fhp fhr fhs foa foc fof foh foo fop for fos fpa fpc fph fpo fpp fpr fps fra frc frf frh fro frp frr frs fsa fsc fsf fsh fso fsp fsr fss haa hac haf hah hao hap har has hca hcc hcf hch hco hcp hcr hcs hfa hfc hff hfh hfo hfp hfr hfs hha hhc hhf hhh hho hhp hhr hhs hoa hoc hof hoh hoo hop hor hos hpa hpc hpf hph hpo hpp hpr hps hr- hra hrc hrf hrh hro hrp hrr hrs hsa hsc hsf hsh hsp hsr hss oaa oac oaf oah oao oap oar oas oc- oca occ ocf och oco ocp ocr ocs of- ofa ofc off ofo ofp ofr ofs oha ohc ohf ohh oho ohp ohr ohs oo- ooa ooc oof ooh ooo oop oor oos op- opa opc opf oph opo opp opr ops or- ora orc orf orh oro orp orr ors os- osa osc osf osh oso osp osr oss p-p paa pac paf pah pao pap par pas pca pcc pcf pch pco pcp pcr pcs pfa pfc pff pfo pfp pfr pfs pha phc phf pho php phr phs poa poc pof poh poo pop por pos ppa ppc ppf pph ppo ppp ppr pps pra prc prf prh pro prp prr prs ps- psa psc psf psh pso psp psr pss ra- raa rac raf rah rao rap rar ras rca rcc rcf rch rco rcp rcr rcs rfa rfc rff rfh rfo rfp rfr rfs rh- rha rhc rhf rhh rho rhp rhr rhs roa roc rof roh roo rop ror ros rpa rpc rpf rph rpo rpp rpr rps rra rrc rrf rrh rrp rrr rrs rsa rsc rsf rsh rso rsp rsr rss saa sac saf sah sao sap sar sas sca scc scf sch sco scp scr scs sfa sfc sff sfh sfo sfp sfr sfs sh- sha shc shf shh sho shp shr shs soa soc sof soh soo sop sor sos spa spc spf sph spo spp spr sps sr- sra src srf srh sro srp srr srs ss- ssa ssc ssf ssh sso ssp ssr sss