a-a a-c aaa aac aad aak aao aap aas ac- aca acc acd ack aco acp acs ad- ada adc add adk ado adp ads aka akc akd akk ako akp aks aoa aoc aod aok aoo aop aos ap- apa apc apd apk apo app aps as- asa asc asd ask aso asp ass c-- caa cac cad cak cao cap cas cca ccc ccd cck cco ccp ccs cda cdc cdd cdk cdo cdp cds cka ckc ckd cko cks co- coa coc cod cok coo cop cos cpa cpc cpd cpk cpo cpp cps csa csc csd csk cso csp css daa dac dad dak dao dap das dca dcc dcd dck dco dcp dcs dda ddc ddd ddk ddo ddp dds dka dkc dkk dko dkp dks doa doc dod dok doo dop dos dpa dpc dpd dpk dpo dpp dps dsa dsc dsd dsk dso dsp dss ka- kaa kac kad kak kao kap kas kca kcc kcd kck kcp kcs kda kdc kdk kdo kdp kds kkc kkk kkp kks koa koc kod kok koo kop kos kpa kpc kpd kpk kpo kpp kps ksa ksc ksd ksk kso ksp kss oaa oac oad oak oao oap oas oc- oca occ ocd ock oco ocp ocs oda odc odd odo odp ods oka okc okd okk oko okp oks oo- ooa ooc ood ook ooo oop oos op- opa opc opd opk opo opp ops os- osa osc osd osk oso osp oss p-p paa pac pad pak pao pap pas pca pcc pcd pck pco pcp pcs pda pdc pdd pdk pdo pdp pds pka pkc pkd pko pkp pks poa poc pod pok poo pop pos ppa ppc ppd ppk ppo ppp pps ps- psa psc psd psk pso psp pss saa sac sad sak sao sap sas sca scc scd sck sco scp scs sda sdc sdd sdk sdo sdp sds sk- ska skc skd skk sko skp sks soa soc sod sok soo sop sos spa spc spd spk spo spp sps ss- ssa ssc ssd ssk sso ssp sss