-ic -ol -th c-- ccc ccf cch cci cck ccl cco ccs cct cfc cff cfh cfi cfk cfl cfo cfs cft ch- chc chf chh chi chk chl cho chs cht ci- cic cif cih cii cik cil cio cis cit ckc ckh cki cko cks ckt cl- clc clf clh cli clk cll clo cls clt co- coc cof coh coi cok col coo cos cot csc csf csh csi csk csl cso css cst ctc ctf cth cti ctk ctl cto cts ctt fcc fcf fci fck fcl fco fcs fct ffc fff ffh ffi ffk ffl ffo ffs fft fhc fhf fhh fhi fhl fho fhs fic fif fih fii fik fil fis fit fkc fkf fki fkk fkl fkt flc flf fli fll flo fls flt foc fof foh foi fok fol foo fos fot fsc fsf fsh fsi fsk fsl fso fss fst ftc ftf fth fti ftk ftl fto fts ftt h-i hcc hcf hch hci hck hcl hco hcs hct hfc hff hfh hfi hfk hfl hfo hfs hft hhc hhf hhh hhi hhk hhl hho hhs hht hic hif hih hii hik hil hio his hit hkf hkh hki hkk hkl hko hks hkt hlc hlf hlh hli hll hlo hls hlt hoc hof hoh hoi hok hol hoo hos hot hsc hsf hsh hsi hsk hsl hss hst htc htf hth hti htk htl hto hts htt i-f icc icf ich ici ick icl ico ics ict ifc iff ifi ifl ifo ifs ift ihc ihf ihh ihi ihk ihl iho ihs iht iic iif iih iii iil iio iis iit ikc ikf iki ikk ikl iko iks ikt il- ilc ilf ilh ili ilk ill ilo ils ilt io- ioc iof ioh ioi iol ioo ios iot is- isc isf ish isi isk isl iso iss ist itc itf ith iti itk itl ito its itt k-t kcc kch kci kck kcl kcs kct kfc kff kfh kfi kfo kfs khf khh khi khk kho khs kic kif kih kii kik kil kio kis kit kkc kkh kki kkk kkl kks kkt kl- klc klf klh kli klo kls klt koc kof koh koi kok kol koo kos kot ksc ksf ksh ksi ksk ksl kso kss kst ktc ktf kth ktk ktl kto kts ktt lcc lcf lch lci lck lcl lco lcs lct lfc lff lfh lfi lfk lfl lfo lfs lft lhc lhf lhh lhi lhk lho lhs lht lic lif lih lii lik lil lio lis lit lkh lkl lks lkt llc llf lli llk lll llo lls llt loc lof loh loi lok lol loo los lot lsc lsf lsh lsi lsk lsl lso lss lst ltc ltf lth lti ltk ltl lto lts ltt o-i oc- occ ocf och oci ock ocl oco ocs oct of- ofc off ofi ofl ofo ofs oft ohc ohf ohh ohi ohl oho ohs oht oic oif oii oik oil oio ois oit okc oki okk okl oko oks olc olf oli olk oll olo ols olt oo- ooc oof ooh ooi ook ool ooo oos oot os- osc osf osh osi osk osl oso oss ost ot- otc otf oth oti otk otl oto ots ott scc scf sch sci sck scl sco scs sct sfc sff sfh sfi sfk sfl sfo sfs sft sh- shc shf shh shi shk shl sho shs sht sic sif sih sii sik sil sio sis sit sk- skc skf skh ski skk skl sko sks skt slc slf slh sli slk sll slo sls slt soc sof soh soi sok sol soo sos sot ss- ssc ssf ssh ssi ssk ssl sso sss sst stc stf sth sti stk stl sto sts stt tcc tcf tch tci tck tcl tco tcs tct tfc tff tfh tfi tfk tfl tfo tfs tft th- thc thf thh thi thk thl tho ths tht tic tif tih tii tik til tio tis tit tkc tkk tkl tko tks tkt tlc tlf tlh tli tlk tll tlo tls tlt to- toc tof toh toi tok tol too tos tot tsc tsf tsh tsi tsk tsl tso tss tst ttc ttf tth tti ttk ttl tto tts ttt