-ic -ol c-- ccc cci cck ccl cco ccr ccs cct ci- cic cii cik cil cio cir cis cit ckc cki cko cks ckt cl- clc cli clk cll clo clr cls clt co- coc coi cok col coo cor cos cot crc cri crk crl cro crr crs crt csc csi csk csl cso csr css cst ctc cti ctk ctl cto ctr cts ctt icc ici ick icl ico icr ics ict iic iii iil iio iir iis iit ikc iki ikk ikl iko ikr iks ikt il- ilc ili ilk ill ilo ilr ils ilt io- ioc ioi iol ioo ior ios iot ir- irc iri irk irl iro irr irs irt is- isc isi isk isl iso isr iss ist itc iti itk itl ito its itt k-t kcc kci kck kcl kcr kcs kct kic kii kik kil kio kir kis kit kkc kki kkk kkl kkr kks kkt kl- klc kli klo klr kls klt koc koi kok kol koo kor kos kot krc kri krk krl kro krr krs krt ksc ksi ksk ksl kso ksr kss kst ktc ktk ktl kto ktr kts ktt lcc lci lck lcl lco lcr lcs lct lic lii lik lil lio lir lis lit lkl lkr lks lkt llc lli llk lll llo llr lls llt loc loi lok lol loo lor los lot lrc lri lrk lro lrr lrs lrt lsc lsi lsk lsl lso lsr lss lst ltc lti ltk ltl lto ltr lts ltt o-i oc- occ oci ock ocl oco ocr ocs oct oic oii oik oil oio oir ois oit okc oki okk okl oko okr oks olc oli olk oll olo ols olt oo- ooc ooi ook ool ooo oor oos oot or- orc ori ork orl oro orr ors ort os- osc osi osk osl oso osr oss ost ot- otc oti otk otl oto otr ots ott rcc rci rcl rco rcr rcs rct ric rii rik ril rio rir ris rit rkc rkk rko rks rkt rlc rli rll rlo rlr rls rlt roc roi rok rol roo ror ros rot rrc rri rrk rrl rrr rrs rrt rsc rsi rsk rsl rso rsr rss rst rtc rti rtk rtl rto rtr rts rtt scc sci sck scl sco scr scs sct sic sii sik sil sio sir sis sit sk- skc ski skk skl sko skr sks skt slc sli slk sll slo slr sls slt soc soi sok sol soo sor sos sot sr- src sri srk srl sro srr srs srt ss- ssc ssi ssk ssl sso ssr sss sst stc sti stk stl sto str sts stt tcc tci tck tcl tco tcr tcs tct tic tii tik til tio tir tis tit tkc tkk tkl tko tkr tks tkt tlc tli tlk tll tlo tlr tls tlt to- toc toi tok tol too tor tos tot trc tri trk trl tro trr trs trt tsc tsi tsk tsl tso tsr tss tst ttc tti ttk ttl tto ttr tts ttt