-th b-u bbb bbc bbg bbh bbn bbo bbt bbu bcb bcc bcg bch bcn bco bct bcu bgb bgc bgg bgh bgn bgo bgt bgu bhb bhc bhg bhh bho bht bhu bnb bnc bng bnn bno bnt bnu bob boc bog boh bon boo bot bou btb btc btg bth btn bto btt btu bub buc bug buh bun buo but buu c-- cbb cbc cbg cbh cbn cbo cbt cbu ccb ccc ccg cch ccn cco cct ccu cgb cgc cgg cgh cgn cgo cgt cgu ch- chb chc chg chh chn cho cht chu cn- cnb cnc cng cnh cnn cno cnt cnu co- cob coc cog coh con coo cot cou ctb ctc ctg cth ctn cto ctt ctu cub cuc cug cuh cun cuo cut cuu gbc gbg gbh gbn gbo gbt gbu gcb gcc gcg gch gcn gco gct gcu ggb ggc ggg ggh ggn ggo ggt ggu ghb ghc ghg ghh ghn gho ght gnb gnc gnn gno gnt gnu gob goc gog goh gon goo got gou gtb gtc gtg gth gtn gto gtt gtu gu- gub guc gug gun guo gut guu hbb hbc hbg hbh hbn hbo hbt hbu hcb hcc hcg hch hcn hco hct hgb hgc hgg hgh hgn hgo hgt hgu hhb hhc hhg hhh hhn hho hht hhu hnb hnc hng hnh hnn hno hnt hnu hob hoc hog hoh hon hoo hot hou htb htc htg hth htn hto htt hub huc hug huh hun huo hut huu nbb nbc nbg nbn nbo nbt nbu ncb ncc ncg nch ncn nco nct ncu ngb ngc ngg ngh ngn ngo ngt ngu nhb nhc nhg nhh nhn nht nhu nnb nnc nng nnh nnn nno nnt nnu no- nob noc nog noh non noo not nou ntb ntc ntg nth ntn nto ntt ntu nub nuc nug nuh nun nuo nut nuu ob- obb obc obg obh obn obo obt obu oc- ocb occ ocg och ocn oco oct ocu ogc ogg ogh ogn ogo ogt ohc ohg ohh ohn oho oht ohu on- onb onc ong onh onn ono ont onu oo- oob ooc oog ooh oon ooo oot ot- otb otc otg oth otn oto ott otu ou- ouc ouh oun ouo out tbb tbc tbg tbh tbn tbo tbt tbu tcb tcc tcg tch tcn tco tct tcu tgb tgc tgg tgh tgn tgo tgt tgu th- thb thc thg thh thn tho tht thu tnb tnc tng tnh tnn tno tnt to- tob toc tog toh ton too tot tou ttb ttc ttg tth ttn tto ttt ttu tub tuc tug tuh tun tuo tut tuu ubb ubc ubg ubh ubn ubo ubt ubu ucb ucc ucg uch ucn uco uct ucu ugb ugc ugg ugh ugn ugo ugt ugu uhb uhc uhh uho uht uhu un- unb unc ung unh unn uno unt unu uob uoc uog uon uoo uot utb utc uth utn uto utt utu uuc uug uun uut uuu