-ic -ol -th bbb bbc bbh bbi bbl bbo bbt bcb bcc bch bci bcl bco bct bhb bhc bhh bhi bhl bho bht bi- bib bic bih bii bil bio bit blb blc blh bli bll blo blt bob boc boh boi bol boo bot btb btc bth bti btl bto btt c-- cbb cbc cbh cbi cbl cbo cbt ccb ccc cch cci ccl cco cct ch- chb chc chh chi chl cho cht ci- cib cic cih cii cil cio cit cl- clb clc clh cli cll clo clt co- cob coc coh coi col coo cot ctb ctc cth cti ctl cto ctt h-i hbb hbc hbh hbi hbl hbo hbt hcb hcc hch hci hcl hco hct hhb hhc hhh hhi hhl hho hht hib hic hih hii hil hio hit hlb hlc hlh hli hll hlo hlt hob hoc hoh hoi hol hoo hot htb htc hth hti htl hto htt ibb ibc ibh ibi ibl ibo ibt icb icc ich ici icl ico ict ihb ihc ihh ihi ihl iho iht iib iic iih iii iil iio iit il- ilb ilc ilh ili ill ilo ilt io- iob ioc ioh ioi iol ioo iot itb itc ith iti itl ito itt lbb lbc lbh lbi lbl lbo lbt lcb lcc lch lci lcl lco lct lhb lhc lhh lhi lho lht lib lic lih lii lil lio lit llb llc lli lll llo llt lob loc loh loi lol loo lot ltb ltc lth lti ltl lto ltt o-i ob- obb obc obh obi obl obo obt oc- ocb occ och oci ocl oco oct ohc ohh ohi ohl oho oht oib oic oii oil oio oit olb olc oli oll olo olt oo- oob ooc ooh ooi ool ooo oot ot- otb otc oth oti otl oto ott tbb tbc tbh tbi tbl tbo tbt tcb tcc tch tci tcl tco tct th- thb thc thh thi thl tho tht tib tic tih tii til tio tit tlc tlh tli tll tlo tlt to- tob toc toh toi tol too tot ttb ttc tth tti ttl tto ttt