bbb bbg bbn bbo bbr bbs bbt bbx bgb bgg bgn bgo bgr bgs bgt bgx bnb bng bnn bno bnr bns bnt bnx bob bog bon boo bor bos bot box brb brg brn bro brr brs brt brx bsb bsg bsn bso bsr bss bst bsx btb btg btn bto btr bts btt btx bxb bxn bxo bxx gbg gbn gbo gbr gbs gbt gbx ggb ggg ggn ggo ggr ggs ggt gnb gnn gno gnr gns gnt gob gog gon goo gor gos got gox grb grg grn gro grr grs grt grx gsb gsg gsn gso gsr gss gst gsx gtb gtg gtn gto gtr gts gtt gtx gxs gxt nbb nbg nbn nbo nbr nbs nbt nbx ngb ngg ngn ngo ngs ngt nnb nng nnn nno nns nnt no- nob nog non noo nor nos not nox nrb nrg nrn nro nrr nrs nrt nrx nsb nsg nsn nso nsr nss nst nsx ntb ntg ntn nto ntr nts ntt ntx nxt ob- obb obg obn obo obr obs obt obx ogg ogn ogo ogs ogt ogx on- onb ong onn ono onr ons ont onx oo- oob oog oon ooo oor oos oot oox or- orb org orn oro orr ors ort orx os- osb osg osn oso osr oss ost osx ot- otb otg otn oto otr ots ott ox- oxb oxn oxo oxt oxx rbb rbg rbn rbo rbr rbs rbt rbx rgb rgg rgn rgo rgr rgs rgt rgx rnb rng rnn rno rnr rns rnt rob rog ron roo ror ros rot rox rrb rrg rrn rrr rrs rrt rsb rsg rsn rso rsr rss rst rsx rtb rtg rtn rto rtr rts rtt rtx rxr rxs sbb sbg sbn sbo sbr sbs sbt sbx sgb sgg sgn sgo sgr sgs sgt sgx snb sng snn sno snr sns snt sob sog son soo sor sos sot sox sr- srb srg srn sro srr srs srt srx ss- ssb ssg ssn sso ssr sss sst ssx stb stg stn sto str sts stt stx sxn sxs sxt t-x tbb tbg tbn tbo tbr tbs tbt tgb tgg tgn tgo tgr tgs tgt tnb tng tnn tno tnr tns tnt tnx to- tob tog ton too tor tos tot tox trb trg trn tro trr trs trt trx tsb tsg tsn tso tsr tss tst tsx ttb ttg ttn tto ttr tts ttt ttx txn txs txt xbr xbx xno xns xog xon xoo xor xos xot xox xrt xrx xsb xss xst xtr xts xtx xxo xxx