-ic bbb bbc bbd bbh bbi bbo bcb bcc bcd bch bci bco bdb bdc bdd bdh bdi bdo bhb bhc bhd bhh bhi bho bi- bib bic bid bih bii bio bob boc bod boh boi boo c-- cbb cbc cbd cbh cbi cbo ccb ccc ccd cch cci cco cdb cdc cdd cdh cdi cdo ch- chb chc chd chh chi cho ci- cib cic cid cih cii cio co- cob coc cod coh coi coo dbb dbc dbd dbh dbi dbo dcb dcc dcd dci dco ddb ddc ddd ddh ddi ddo dh- dhb dhc dhd dhh dhi dho di- dib dic did dih dii dio dob doc dod doh doi doo h-i hbb hbc hbd hbh hbi hbo hcb hcc hcd hch hci hco hdb hdc hdd hdh hdi hdo hhb hhc hhd hhh hhi hho hib hic hid hih hii hio hob hoc hod hoh hoi hoo i-d ibb ibc ibd ibh ibi ibo icb icc icd ich ici ico idb idc idd idh idi ido ihb ihc ihd ihh ihi iho iib iic iid iih iii iio io- iob ioc iod ioh ioi ioo o-i ob- obb obc obd obh obi obo oc- ocb occ ocd och oci oco odb odc odd odh odi odo ohc ohd ohh ohi oho oib oic oid oii oio oo- oob ooc ood ooh ooi ooo