a-a a-b aaa aab aad aah aaj aak aao ab- aba abb abd abh abj abk abo ad- ada adb add adh adj adk ado aha ahb ahd ahh ahj ahk aho aja ajb ajd ajh ajj ajk ajo aka akb akd akh akj akk ako aoa aob aod aoh aoj aok aoo baa bab bad bah baj bak bao bba bbb bbd bbh bbk bbo bda bdb bdd bdh bdj bdk bdo bha bhb bhd bhh bhj bhk bho bja bjd bjj bjk bka bkb bkk bko boa bob bod boh boj bok boo daa dab dad dah daj dak dao dba dbb dbd dbh dbk dbo dda ddb ddd ddh ddk ddo dh- dha dhb dhd dhh dhk dho dj- dja djb djd djk djo dka dkb dkk dko doa dob dod doh doj dok doo haa hab had hah haj hak hao hba hbb hbd hbh hbj hbk hbo hda hdb hdd hdh hdk hdo hha hhb hhd hhh hhj hhk hho hja hjk hjo hka hkb hkd hkh hkk hko hoa hob hod hoh hok hoo j-d jaa jab jad jah jaj jak jao jba jbj jbk jbo jda jdb jdh jdo jha jhd jhj jho jja jjb jjj jjk jka jkb jkh jkk jko joa job jod joh joj jok joo ka- kaa kab kad kah kaj kak kao kba kbb kbd kbh kbk kbo kda kdb kdh kdk kdo kha khh khj khk kho kjb kkb kkh kkk koa kob kod koh kok koo oaa oab oad oah oaj oak oao ob- oba obb obd obh obj obk obo oda odb odd odh odo oha ohd ohh oho oja ojb ojd ojo oka okb okd okj okk oko oo- ooa oob ood ooh ook ooo