-ic bbb bbc bbd bbe bbi bbm bbo bcb bcc bcd bce bci bcm bco bdb bdc bdd bde bdi bdm bdo be- beb bec bed bee bei bem beo bi- bib bic bid bie bii bim bio bmb bmc bmd bme bmi bmm bmo bob boc bod boe boi bom boo c-- cbb cbc cbd cbe cbi cbm cbo ccb ccc ccd cce cci ccm cco cdb cdc cdd cde cdi cdm cdo ce- ceb cec ced cee cei cem ceo ci- cib cic cid cie cii cim cio cmb cmc cmd cme cmi cmm cmo co- cob coc cod coe coi com coo dbb dbc dbd dbe dbi dbm dbo dcb dcc dcd dce dci dcm dco ddb ddc ddd dde ddi ddm ddo de- deb dec ded dee dei dem deo di- dib dic did die dii dim dio dmb dmc dmd dme dmi dmm dmo dob doc dod doe doi dom doo ebb ebc ebd ebe ebi ebm ebo ec- ecb ecc ecd ece eci ecm eco ed- edb edc edd ede edi edm edo eeb eec eed eee eem eeo eib eic eid eie eii eim eio em- emb emc emd eme emi emm emo eo- eob eoc eod eoe eoi eom eoo i-d ibb ibc ibd ibe ibi ibm ibo icb icc icd ice ici icm ico idb idc idd ide idi idm ido ie- iec ied iee iei iem iib iic iid iie iii iim iio im- imb imc imd ime imi imm imo io- iob ioc iod ioe ioi iom ioo m-o mbb mbc mbd mbe mbi mbm mbo mc- mcb mcc mcd mce mci mcm mco mdb mdc mdd mde mdi mdm mdo meb mec med mee mei mem meo mi- mib mic mid mie mii mim mio mmb mmc mmd mme mmi mmm mmo mob moc mod moe moi mom moo o-i ob- obb obc obd obe obi obm obo oc- ocb occ ocd oci ocm oco odb odc odd ode odi odm odo oeb oec oed oee oei oem oeo oib oic oid oie oii oim oio om- omb omc omd ome omi omm omo oo- oob ooc ood ooi oom ooo