bbb bbc bbd bbm bbn bbo bby bcb bcc bcd bcm bcn bco bcy bdb bdc bdd bdm bdo bdy bmb bmc bmd bmm bmn bmo bnb bnc bnd bnn bno bob boc bod bom bon boo boy by- byc byd bym byn byo c-- cbb cbc cbd cbm cbn cbo cby ccb ccc ccd ccm ccn cco cdb cdc cdd cdm cdn cdo cdy cmb cmc cmd cmm cmn cmo cmy cn- cnb cnc cnd cnm cnn cno cny co- cob coc cod com con coo coy cyb cyc cyd cym cyn cyo dbb dbc dbd dbm dbn dbo dby dcb dcc dcd dcm dcn dco ddb ddc ddd ddm ddn ddo ddy dmb dmc dmd dmm dmn dmo dnb dnc dnd dnm dnn dno dny dob doc dod dom don doo doy dy- dyb dyc dyd dym dyn dyo dyy m-o mbb mbc mbd mbm mbo mc- mcb mcc mcd mcm mcn mco mdb mdc mdd mdm mdn mdo mdy mmb mmc mmd mmm mmn mmo mnb mnc mnm mnn mno mob moc mod mom mon moo moy my- myb myc myd mym myn myo nbb nbc nbd nbm nbn nbo ncb ncc ncd ncm ncn nco ndb ndc ndd ndm ndn ndo ndy nmb nmc nmd nmm nmn nmo nnb nnc nnm nnn nno no- nob noc nod nom non noo noy nyc nyd nym nyn nyo nyy ob- obb obc obd obm obn obo oby oc- ocb occ ocd ocm ocn oco odb odc odd odm odn odo om- omb omc omd omm omn omo omy on- onb onc ond onn ono ony oo- oob ooc ood oom oon ooo oyd oyo ybc ybm yby ycc ycd yco ycy ydn ydo ydy ymc ymm ymo ynd ynn yny yob yoc yod yom yon yoo yoy yyb yyc yyy