-ic -ol c-- ccc ccf cci ccl cco ccr ccs cct cfc cff cfi cfl cfo cfr cfs cft ci- cic cif cii cil cio cir cis cit cl- clc clf cli cll clo clr cls clt co- coc cof coi col coo cor cos cot crc crf cri crl cro crr crs crt csc csf csi csl cso csr css cst ctc ctf cti ctl cto ctr cts ctt fcc fcf fci fcl fco fcr fcs fct ffc fff ffi ffl ffo ffr ffs fft fic fif fii fil fir fis fit flc flf fli fll flo flr fls flt foc fof foi fol foo for fos fot frc frf fri frl fro frr frs frt fsc fsf fsi fsl fso fsr fss fst ftc ftf fti ftl fto ftr fts ftt i-f icc icf ici icl ico icr ics ict ifc iff ifi ifl ifo ifr ifs ift iic iif iii iil iio iir iis iit il- ilc ilf ili ill ilo ilr ils ilt io- ioc iof ioi iol ioo ior ios iot ir- irc irf iri irl iro irr irs irt is- isc isf isi isl iso isr iss ist itc itf iti itl ito its itt lcc lcf lci lcl lco lcr lcs lct lfc lff lfi lfl lfo lfr lfs lft lic lif lii lil lio lir lis lit llc llf lli lll llo llr lls llt loc lof loi lol loo lor los lot lrc lrf lri lro lrr lrs lrt lsc lsf lsi lsl lso lsr lss lst ltc ltf lti ltl lto ltr lts ltt o-i oc- occ ocf oci ocl oco ocr ocs oct of- ofc off ofi ofl ofo ofr ofs oft oic oif oii oil oio oir ois oit olc olf oli oll olo ols olt oo- ooc oof ooi ool ooo oor oos oot or- orc orf ori orl oro orr ors ort os- osc osf osi osl oso osr oss ost ot- otc otf oti otl oto otr ots ott rcc rcf rci rcl rco rcr rcs rct rfc rff rfi rfl rfo rfr rfs rft ric rif rii ril rio rir ris rit rlc rlf rli rll rlo rlr rls rlt roc rof roi rol roo ror ros rot rrc rrf rri rrl rrr rrs rrt rsc rsf rsi rsl rso rsr rss rst rtc rtf rti rtl rto rtr rts rtt scc scf sci scl sco scr scs sct sfc sff sfi sfl sfo sfr sfs sft sic sif sii sil sio sir sis sit slc slf sli sll slo slr sls slt soc sof soi sol soo sor sos sot sr- src srf sri srl sro srr srs srt ss- ssc ssf ssi ssl sso ssr sss sst stc stf sti stl sto str sts stt tcc tcf tci tcl tco tcr tcs tct tfc tff tfi tfl tfo tfr tfs tft tic tif tii til tio tir tis tit tlc tlf tli tll tlo tlr tls tlt to- toc tof toi tol too tor tos tot trc trf tri trl tro trr trs trt tsc tsf tsi tsl tso tsr tss tst ttc ttf tti ttl tto ttr tts ttt