-ic -ol c-- ccc cci ccl cco ccr ccs cct ccx ci- cic cii cil cio cir cis cit cix cl- clc cli cll clo clr cls clt clx co- coc coi col coo cor cos cot cox crc cri crl cro crr crs crt crx csc csi csl cso csr css cst csx ctc cti ctl cto ctr cts ctt ctx cxc cxi cxl cxo cxr cxs cxt cxx icc ici icl ico icr ics ict iic iii iil iio iir iis iit iix il- ilc ili ill ilo ilr ils ilt ilx io- ioc ioi iol ioo ior ios iot ir- irc iri irl iro irr irs irt irx is- isc isi isl iso isr iss ist itc iti itl ito its itt itx ixc ixi ixl lcc lci lcl lco lcr lcs lct lcx lic lii lil lio lir lis lit lix llc lli lll llo llr lls llt loc loi lol loo lor los lot lox lrc lri lro lrr lrs lrt lsc lsi lsl lso lsr lss lst ltc lti ltl lto ltr lts ltt ltx lxc lxi lxo lxr lxx o-i oc- occ oci ocl oco ocr ocs oct ocx oic oii oil oio oir ois oit olc oli oll olo ols olt oo- ooc ooi ool ooo oor oos oot oox or- orc ori orl oro orr ors ort orx os- osc osi osl oso osr oss ost osx ot- otc oti otl oto otr ots ott ox- oxc oxi oxo oxt oxx rcc rci rcl rco rcr rcs rct rcx ric rii ril rio rir ris rit rix rlc rli rll rlo rlr rls rlt roc roi rol roo ror ros rot rox rrc rri rrl rrr rrs rrt rsc rsi rsl rso rsr rss rst rsx rtc rti rtl rto rtr rts rtt rtx rxr rxs scc sci scl sco scr scs sct scx sic sii sil sio sir sis sit six slc sli sll slo slr sls slt slx soc soi sol soo sor sos sot sox sr- src sri srl sro srr srs srt srx ss- ssc ssi ssl sso ssr sss sst ssx stc sti stl sto str sts stt stx sxc sxi sxl sxs sxt t-x tcc tci tcl tco tcr tcs tct tcx tic tii til tio tir tis tit tix tlc tli tll tlo tlr tls tlt tlx to- toc toi tol too tor tos tot tox trc tri trl tro trr trs trt trx tsc tsi tsl tso tsr tss tst tsx ttc tti ttl tto ttr tts ttt ttx txi txl txs txt xci xcl xcr xcx xic xii xio xis xit xix xli xlr xls xlt xoc xoi xoo xor xos xot xox xrc xrt xrx xsc xsi xsl xss xst xtc xti xtr xts xtx xxi xxl xxo xxx