-ic -th bbb bbc bbh bbi bbn bbo bbt bcb bcc bch bci bcn bco bct bhb bhc bhh bhi bho bht bi- bib bic bih bii bin bio bit bnb bnc bni bnn bno bnt bob boc boh boi bon boo bot btb btc bth bti btn bto btt c-- cbb cbc cbh cbi cbn cbo cbt ccb ccc cch cci ccn cco cct ch- chb chc chh chi chn cho cht ci- cib cic cih cii cin cio cit cn- cnb cnc cnh cni cnn cno cnt co- cob coc coh coi con coo cot ctb ctc cth cti ctn cto ctt h-i hbb hbc hbh hbi hbn hbo hbt hcb hcc hch hci hcn hco hct hhb hhc hhh hhi hhn hho hht hib hic hih hii hin hio hit hnb hnc hnh hnn hno hnt hob hoc hoh hoi hon hoo hot htb htc hth hti htn hto htt ibb ibc ibh ibi ibn ibo ibt icb icc ich ici icn ico ict ihb ihc ihh ihi ihn iho iht iib iic iih iii iin iio iit in- inb inc inh ini inn ino int io- iob ioc ioh ioi ion ioo iot itb itc ith iti itn ito itt n-i nbb nbc nbi nbn nbo nbt ncb ncc nch nci ncn nco nct nhb nhc nhh nhi nhn nht nib nic nih nii nin nio nit nnb nnc nnh nni nnn nno nnt no- nob noc noh noi non noo not ntb ntc nth nti ntn nto ntt o-i ob- obb obc obh obi obn obo obt oc- ocb occ och oci ocn oco oct ohc ohh ohi ohn oho oht oib oic oii oin oio oit on- onb onc onh oni onn ono ont oo- oob ooc ooh ooi oon ooo oot ot- otb otc oth oti otn oto ott tbb tbc tbh tbi tbn tbo tbt tcb tcc tch tci tcn tco tct th- thb thc thh thi thn tho tht tib tic tih tii tin tio tit tnb tnc tnh tni tnn tno tnt to- tob toc toh toi ton too tot ttb ttc tth tti ttn tto ttt