-ic -th b-p bbb bbc bbh bbi bbo bbp bbt bcb bcc bch bci bco bcp bct bhb bhc bhh bhi bho bhp bht bi- bib bic bih bii bio bip bit bob boc boh boi boo bop bot bpb bpc bph bpi bpo bpp bpt btb btc bth bti bto btp btt c-- cbb cbc cbh cbi cbo cbp cbt ccb ccc cch cci cco ccp cct ch- chb chc chh chi cho chp cht ci- cib cic cih cii cio cip cit co- cob coc coh coi coo cop cot cpb cpc cph cpi cpo cpp cpt ctb ctc cth cti cto ctp ctt h-i hbb hbc hbh hbi hbo hbp hbt hcb hcc hch hci hco hcp hct hhb hhc hhh hhi hho hhp hht hib hic hih hii hio hip hit hob hoc hoh hoi hoo hop hot hpb hpc hph hpi hpo hpp hpt htb htc hth hti hto htp htt ibb ibc ibh ibi ibo ibp ibt icb icc ich ici ico icp ict ihb ihc ihh ihi iho ihp iht iib iic iih iii iio iip iit io- iob ioc ioh ioi ioo iop iot ipb ipc ipi ipo ipp ipt itb itc ith iti ito itp itt o-i ob- obb obc obh obi obo obp obt oc- ocb occ och oci oco ocp oct ohc ohh ohi oho ohp oht oib oic oii oio oip oit oo- oob ooc ooh ooi ooo oop oot op- opb opc oph opi opo opp opt ot- otb otc oth oti oto otp ott p-p pbb pbc pbi pbo pbp pbt pcb pcc pch pci pco pcp pct phb phc phi pho php pht pib pic pih pii pio pip pit pob poc poh poi poo pop pot ppb ppc pph ppi ppo ppp ppt pt- ptb ptc pth pti pto ptp ptt tbb tbc tbh tbi tbo tbp tbt tcb tcc tch tci tco tcp tct th- thb thc thh thi tho thp tht tib tic tih tii tio tip tit to- tob toc toh toi too top tot tpb tpc tph tpi tpo tpp tpt ttb ttc tth tti tto ttp ttt