-ic -ol c-- ccc ccf cci cck ccl cco ccr ccs cct cfc cff cfi cfk cfl cfo cfr cfs cft ci- cic cif cii cik cil cio cir cis cit ckc cki cko cks ckt cl- clc clf cli clk cll clo clr cls clt co- coc cof coi cok col coo cor cos cot crc crf cri crk crl cro crr crs crt csc csf csi csk csl cso csr css cst ctc ctf cti ctk ctl cto ctr cts ctt fcc fcf fci fck fcl fco fcr fcs fct ffc fff ffi ffk ffl ffo ffr ffs fft fic fif fii fik fil fir fis fit fkc fkf fki fkk fkl fkt flc flf fli fll flo flr fls flt foc fof foi fok fol foo for fos fot frc frf fri frk frl fro frr frs frt fsc fsf fsi fsk fsl fso fsr fss fst ftc ftf fti ftk ftl fto ftr fts ftt i-f icc icf ici ick icl ico icr ics ict ifc iff ifi ifl ifo ifr ifs ift iic iif iii iil iio iir iis iit ikc ikf iki ikk ikl iko ikr iks ikt il- ilc ilf ili ilk ill ilo ilr ils ilt io- ioc iof ioi iol ioo ior ios iot ir- irc irf iri irk irl iro irr irs irt is- isc isf isi isk isl iso isr iss ist itc itf iti itk itl ito its itt k-t kcc kci kck kcl kcr kcs kct kfc kff kfi kfo kfs kic kif kii kik kil kio kir kis kit kkc kki kkk kkl kkr kks kkt kl- klc klf kli klo klr kls klt koc kof koi kok kol koo kor kos kot krc krf kri krk krl kro krr krs krt ksc ksf ksi ksk ksl kso ksr kss kst ktc ktf ktk ktl kto ktr kts ktt lcc lcf lci lck lcl lco lcr lcs lct lfc lff lfi lfk lfl lfo lfr lfs lft lic lif lii lik lil lio lir lis lit lkl lkr lks lkt llc llf lli llk lll llo llr lls llt loc lof loi lok lol loo lor los lot lrc lrf lri lrk lro lrr lrs lrt lsc lsf lsi lsk lsl lso lsr lss lst ltc ltf lti ltk ltl lto ltr lts ltt o-i oc- occ ocf oci ock ocl oco ocr ocs oct of- ofc off ofi ofl ofo ofr ofs oft oic oif oii oik oil oio oir ois oit okc oki okk okl oko okr oks olc olf oli olk oll olo ols olt oo- ooc oof ooi ook ool ooo oor oos oot or- orc orf ori ork orl oro orr ors ort os- osc osf osi osk osl oso osr oss ost ot- otc otf oti otk otl oto otr ots ott rcc rcf rci rcl rco rcr rcs rct rfc rff rfi rfk rfl rfo rfr rfs rft ric rif rii rik ril rio rir ris rit rkc rkf rkk rko rks rkt rlc rlf rli rll rlo rlr rls rlt roc rof roi rok rol roo ror ros rot rrc rrf rri rrk rrl rrr rrs rrt rsc rsf rsi rsk rsl rso rsr rss rst rtc rtf rti rtk rtl rto rtr rts rtt scc scf sci sck scl sco scr scs sct sfc sff sfi sfk sfl sfo sfr sfs sft sic sif sii sik sil sio sir sis sit sk- skc skf ski skk skl sko skr sks skt slc slf sli slk sll slo slr sls slt soc sof soi sok sol soo sor sos sot sr- src srf sri srk srl sro srr srs srt ss- ssc ssf ssi ssk ssl sso ssr sss sst stc stf sti stk stl sto str sts stt tcc tcf tci tck tcl tco tcr tcs tct tfc tff tfi tfk tfl tfo tfr tfs tft tic tif tii tik til tio tir tis tit tkc tkk tkl tko tkr tks tkt tlc tlf tli tlk tll tlo tlr tls tlt to- toc tof toi tok tol too tor tos tot trc trf tri trk trl tro trr trs trt tsc tsf tsi tsk tsl tso tsr tss tst ttc ttf tti ttk ttl tto ttr tts ttt