a-a a-c aaa aac aad aah aak aao aas ac- aca acc acd ach ack aco acs ad- ada adc add adh adk ado ads aha ahc ahd ahh ahk aho ahs aka akc akd akh akk ako aks aoa aoc aod aoh aok aoo aos as- asa asc asd ash ask aso ass c-- caa cac cad cah cak cao cas cca ccc ccd cch cck cco ccs cda cdc cdd cdh cdk cdo cds ch- cha chc chd chh chk cho chs cka ckc ckd ckh cko cks co- coa coc cod coh cok coo cos csa csc csd csh csk cso css daa dac dad dah dak dao das dca dcc dcd dck dco dcs dda ddc ddd ddh ddk ddo dds dh- dha dhc dhd dhh dhk dho dhs dka dkc dkk dko dks doa doc dod doh dok doo dos dsa dsc dsd dsh dsk dso dss haa hac had hah hak hao has hca hcc hcd hch hck hco hcs hda hdc hdd hdh hdk hdo hds hha hhc hhd hhh hhk hho hhs hka hkd hkh hkk hko hks hoa hoc hod hoh hok hoo hos hsa hsc hsd hsh hsk hss ka- kaa kac kad kah kak kao kas kca kcc kcd kch kck kcs kda kdc kdh kdk kdo kds kha khh khk kho khs kkc kkh kkk kks koa koc kod koh kok koo kos ksa ksc ksd ksh ksk kso kss oaa oac oad oah oak oao oas oc- oca occ ocd och ock oco ocs oda odc odd odh odo ods oha ohc ohd ohh oho ohs oka okc okd okk oko oks oo- ooa ooc ood ooh ook ooo oos os- osa osc osd osh osk oso oss saa sac sad sah sak sao sas sca scc scd sch sck sco scs sda sdc sdd sdh sdk sdo sds sh- sha shc shd shh shk sho shs sk- ska skc skd skh skk sko sks soa soc sod soh sok soo sos ss- ssa ssc ssd ssh ssk sso sss