a-a aaa aad aak aao aas ad- ada add adk ado ads aka akd akk ako aks aoa aod aok aoo aos as- asa asd ask aso ass daa dad dak dao das dda ddd ddk ddo dds dka dkk dko dks doa dod dok doo dos dsa dsd dsk dso dss ka- kaa kad kak kao kas kda kdk kdo kds kkk kks koa kod kok koo kos ksa ksd ksk kso kss oaa oad oak oao oas oda odd odo ods oka okd okk oko oks oo- ooa ood ook ooo oos os- osa osd osk oso oss saa sad sak sao sas sda sdd sdk sdo sds sk- ska skd skk sko sks soa sod sok soo sos ss- ssa ssd ssk sso sss