-th b-u bbb bbc bbh bbn bbo bbt bbu bcb bcc bch bcn bco bct bcu bhb bhc bhh bho bht bhu bnb bnc bnn bno bnt bnu bob boc boh bon boo bot bou btb btc bth btn bto btt btu bub buc buh bun buo but buu c-- cbb cbc cbh cbn cbo cbt cbu ccb ccc cch ccn cco cct ccu ch- chb chc chh chn cho cht chu cn- cnb cnc cnh cnn cno cnt cnu co- cob coc coh con coo cot cou ctb ctc cth ctn cto ctt ctu cub cuc cuh cun cuo cut cuu hbb hbc hbh hbn hbo hbt hbu hcb hcc hch hcn hco hct hhb hhc hhh hhn hho hht hhu hnb hnc hnh hnn hno hnt hnu hob hoc hoh hon hoo hot hou htb htc hth htn hto htt hub huc huh hun huo hut huu nbb nbc nbn nbo nbt nbu ncb ncc nch ncn nco nct ncu nhb nhc nhh nhn nht nhu nnb nnc nnh nnn nno nnt nnu no- nob noc noh non noo not nou ntb ntc nth ntn nto ntt ntu nub nuc nuh nun nuo nut nuu ob- obb obc obh obn obo obt obu oc- ocb occ och ocn oco oct ocu ohc ohh ohn oho oht ohu on- onb onc onh onn ono ont onu oo- oob ooc ooh oon ooo oot ot- otb otc oth otn oto ott otu ou- ouc ouh oun ouo out tbb tbc tbh tbn tbo tbt tbu tcb tcc tch tcn tco tct tcu th- thb thc thh thn tho tht thu tnb tnc tnh tnn tno tnt to- tob toc toh ton too tot tou ttb ttc tth ttn tto ttt ttu tub tuc tuh tun tuo tut tuu ubb ubc ubh ubn ubo ubt ubu ucb ucc uch ucn uco uct ucu uhb uhc uhh uho uht uhu un- unb unc unh unn uno unt unu uob uoc uon uoo uot utb utc uth utn uto utt utu uuc uun uut uuu