bbb bbc bbd bbf bbg bbm bbo bbt bcb bcc bcd bcf bcg bcm bco bct bdb bdc bdd bdf bdg bdm bdo bdt bfb bfc bfd bff bfg bfm bfo bft bgb bgc bgd bgf bgg bgm bgo bgt bmb bmc bmd bmf bmg bmm bmo bmt bob boc bod bof bog bom boo bot btb btc btd btf btg btm bto btt c-- cbb cbc cbd cbf cbg cbm cbo cbt ccb ccc ccd ccf ccg ccm cco cct cdb cdc cdd cdf cdg cdm cdo cdt cfb cfc cfd cff cfg cfm cfo cft cgb cgc cgd cgg cgm cgo cgt cmb cmc cmd cmf cmg cmm cmo cmt co- cob coc cod cof cog com coo cot ctb ctc ctd ctf ctg ctm cto ctt dbb dbc dbd dbf dbg dbm dbo dbt dcb dcc dcd dcf dcg dcm dco dct ddb ddc ddd ddf ddg ddm ddo ddt dfb dfc dfd dff dfg dfm dfo dft dgc dgd dgf dgg dgm dgt dmb dmc dmd dmf dmg dmm dmo dmt dob doc dod dof dog dom doo dot dtb dtc dtd dtf dtg dtm dto dtt fbb fbc fbd fbf fbg fbm fbo fbt fcb fcc fcd fcf fcg fcm fco fct fdb fdc fdd fdf fdg fdm fdo fdt ffc ffd fff ffg ffm ffo fft fgb fgc fgd fgf fgg fgm fgt fmb fmc fmd fmf fmg fmm fmo fmt fob foc fof fog fom foo fot ftb ftc ftd ftf ftg ftm fto ftt g-d gbc gbd gbf gbg gbm gbo gbt gcb gcc gcd gcf gcg gcm gco gct gdb gdc gdd gdf gdm gdo gdt gfb gfc gfd gff gfm gfo gft ggb ggc ggd ggg ggm ggo ggt gmb gmc gmd gmf gmg gmm gmo gmt gob goc god gof gog gom goo got gtb gtc gtd gtf gtg gtm gto gtt m-f m-o mbb mbc mbd mbf mbg mbm mbo mbt mc- mcb mcc mcd mcf mcg mcm mco mct mdb mdc mdd mdf mdg mdm mdo mdt mfb mfc mfd mff mfg mfm mfo mft mgb mgc mgd mgf mgm mgo mgt mmb mmc mmd mmf mmg mmm mmo mmt mob moc mod mof mog mom moo mot mtb mtc mtd mtf mtg mtm mto mtt ob- obb obc obd obf obg obm obo obt oc- ocb occ ocd ocf ocg ocm oco oct odb odc odd odf odg odm odo odt of- ofb ofc ofd off ofg ofm ofo oft ogc ogd ogf ogg ogo ogt om- omb omc omd omf omg omm omo omt oo- oob ooc ood oof oog oom ooo oot ot- otb otc otd otf otg otm oto ott tbb tbc tbd tbf tbg tbm tbo tbt tcb tcc tcd tcf tcg tcm tco tct tdb tdc tdd tdf tdg tdm tdo tdt tfb tfc tfd tff tfg tfm tfo tft tgb tgc tgf tgg tgm tgo tgt tmb tmc tmd tmf tmg tmm tmo tmt to- tob toc tod tof tog tom too tot ttb ttc ttd ttf ttg ttm tto ttt