-ic bbb bbc bbd bbh bbi bbk bbo bby bcb bcc bcd bch bci bck bco bcy bdb bdc bdd bdh bdi bdk bdo bdy bhb bhc bhd bhh bhi bhk bho bi- bib bic bid bih bii bik bio biy bkb bkc bkk bko bob boc bod boh boi bok boo boy by- byc byd byh byi byk byo c-- cbb cbc cbd cbh cbi cbk cbo cby ccb ccc ccd cch cci cck cco cdb cdc cdd cdh cdi cdk cdo cdy ch- chb chc chd chh chi chk cho chy ci- cib cic cid cih cii cik cio ckb ckc ckd ckh cki cko cky co- cob coc cod coh coi cok coo coy cyb cyc cyd cyk cyo dbb dbc dbd dbh dbi dbk dbo dby dcb dcc dcd dci dck dco ddb ddc ddd ddh ddi ddk ddo ddy dh- dhb dhc dhd dhh dhi dhk dho di- dib dic did dih dii dik dio diy dkb dkc dki dkk dko dob doc dod doh doi dok doo doy dy- dyb dyc dyd dyk dyo dyy h-i hbb hbc hbd hbh hbi hbk hbo hby hcb hcc hcd hch hci hck hco hcy hdb hdc hdd hdh hdi hdk hdo hdy hhb hhc hhd hhh hhi hhk hho hhy hib hic hid hih hii hik hio hkb hkd hkh hki hkk hko hob hoc hod hoh hoi hok hoo hoy hy- hyb hyc hyd hyh hyi hyo hyy i-d ibb ibc ibd ibh ibi ibk ibo iby icb icc icd ich ici ick ico icy idb idc idd idh idi idk ido idy ihb ihc ihd ihh ihi ihk iho ihy iib iic iid iih iii iio ikb ikc iki ikk iko io- iob ioc iod ioh ioi ioo iyc iyo iyy kbb kbc kbd kbh kbi kbk kbo kcb kcc kcd kch kci kck kdb kdc kdh kdk kdo kdy khh khi khk kho kib kic kid kih kii kik kio kkb kkc kkh kki kkk kky kob koc kod koh koi kok koo koy kyc kyd kyo o-i ob- obb obc obd obh obi obk obo oby oc- ocb occ ocd och oci ock oco odb odc odd odh odi odo ohc ohd ohh ohi oho oib oic oid oii oik oio okb okc okd oki okk oko oo- oob ooc ood ooh ooi ook ooo oyd oyi oyo ybc ybi yby ycc ycd ych yci yco ycy ydo ydy yhc yhi yid yih yii yio yki ykk yob yoc yod yoi yok yoo yoy yyb yyc yyy