-ol bbb bbc bbd bbe bbg bbl bbo bbs bbt bcb bcc bcd bce bcg bcl bco bcs bct bdb bdc bdd bde bdg bdl bdo bds bdt be- beb bec bed bee beg bel beo bes bet bgb bgc bgd bge bgg bgl bgo bgs bgt blb blc bld ble blg bll blo bls blt bob boc bod boe bog bol boo bos bot bsb bsc bsd bse bsg bsl bso bss bst btb btc btd bte btg btl bto bts btt c-- cbb cbc cbd cbe cbg cbl cbo cbs cbt ccb ccc ccd cce ccg ccl cco ccs cct cdb cdc cdd cde cdg cdl cdo cds cdt ce- ceb cec ced cee ceg cel ceo ces cet cgb cgc cgd cge cgg cgl cgo cgs cgt cl- clb clc cld cle clg cll clo cls clt co- cob coc cod coe cog col coo cos cot csb csc csd cse csg csl cso css cst ctb ctc ctd cte ctg ctl cto cts ctt dbb dbc dbd dbe dbg dbl dbo dbs dbt dcb dcc dcd dce dcg dcl dco dcs dct ddb ddc ddd dde ddg ddl ddo dds ddt de- deb dec ded dee deg del deo des det dgc dgd dge dgg dgl dgs dgt dl- dlb dlc dld dle dlg dll dlo dls dlt dob doc dod doe dog dol doo dos dot dsb dsc dsd dse dsg dsl dso dss dst dtb dtc dtd dte dtg dtl dto dts dtt ebb ebc ebd ebe ebg ebl ebo ebs ebt ec- ecb ecc ecd ece ecg ecl eco ecs ect ed- edb edc edd ede edg edl edo eds edt eeb eec eed eee eeg eel eeo ees eet egb egc egd ege egg egl ego egs egt elb elc eld ele elg ell elo els elt eo- eob eoc eod eoe eog eol eoo eos eot es- esb esc esd ese esg esl eso ess est etb etc etd ete etg etl eto ets ett g-d gbc gbd gbe gbg gbl gbo gbs gbt gcb gcc gcd gce gcg gcl gco gcs gct gdb gdc gdd gde gdl gdo gds gdt ge- geb gec ged gee geg gel geo ges get ggb ggc ggd ggg ggo ggs ggt glb glc gld gle glg gll glo gls glt gob goc god goe gog gol goo gos got gsb gsc gsd gse gsg gsl gso gss gst gtb gtc gtd gte gtg gtl gto gts gtt lbb lbc lbd lbe lbg lbl lbo lbs lbt lcb lcc lcd lce lcg lcl lco lcs lct ldb ldc ldd lde ldg ldl ldo lds ldt leb lec led lee leg lel leo les let lgb lgc lgd lge lgg lgl lgo lgs lgt llb llc lld lle llg lll llo lls llt lob loc lod loe log lol loo los lot lsb lsc lsd lse lsg lsl lso lss lst ltb ltc ltd lte ltg ltl lto lts ltt ob- obb obc obd obe obg obl obo obs obt oc- ocb occ ocd ocg ocl oco ocs oct odb odc odd ode odg odl odo ods odt oeb oec oed oee oeg oel oeo oes oet ogc ogd oge ogg ogl ogo ogs ogt olb olc old ole olg oll olo ols olt oo- oob ooc ood oog ool ooo oos oot os- osb osc osd ose osg osl oso oss ost ot- otb otc otd ote otg otl oto ots ott sbb sbc sbd sbe sbg sbl sbo sbs sbt scb scc scd sce scg scl sco scs sct sdb sdc sdd sde sdg sdl sdo sds sdt se- seb sec sed see seg sel seo ses set sgb sgc sgd sge sgg sgl sgo sgs sgt slb slc sld sle slg sll slo sls slt sob soc sod soe sog sol soo sos sot ss- ssb ssc ssd sse ssg ssl sso sss sst stb stc std ste stg stl sto sts stt tbb tbc tbd tbe tbg tbl tbo tbs tbt tcb tcc tcd tce tcg tcl tco tcs tct tdb tdc tdd tde tdg tdl tdo tds tdt te- teb tec ted tee teg tel teo tes tet tgb tgc tge tgg tgl tgo tgs tgt tlc tld tle tlg tll tlo tls tlt to- tob toc tod toe tog tol too tos tot tsb tsc tsd tse tsg tsl tso tss tst ttb ttc ttd tte ttg ttl tto tts ttt