-ic c-- ccc cci ccn ccr ccs cct ci- cic cii cin cir cis cit cn- cnc cni cnn cnr cns cnt crc cri crn crr crs crt csc csi csn csr css cst ctc cti ctn ctr cts ctt icc ici icn icr ics ict iic iii iin iir iis iit in- inc ini inn inr ins int ir- irc iri irn irr irs irt is- isc isi isn isr iss ist itc iti itn its itt n-i ncc nci ncn ncr ncs nct nic nii nin nir nis nit nnc nni nnn nns nnt nrc nri nrn nrr nrs nrt nsc nsi nsn nsr nss nst ntc nti ntn ntr nts ntt rcc rci rcn rcr rcs rct ric rii rin rir ris rit rnc rni rnn rnr rns rnt rrc rri rrn rrr rrs rrt rsc rsi rsn rsr rss rst rtc rti rtn rtr rts rtt scc sci scn scr scs sct sic sii sin sir sis sit snc sni snn snr sns snt sr- src sri srn srr srs srt ss- ssc ssi ssn ssr sss sst stc sti stn str sts stt tcc tci tcn tcr tcs tct tic tii tin tir tis tit tnc tni tnn tnr tns tnt trc tri trn trr trs trt tsc tsi tsn tsr tss tst ttc tti ttn ttr tts ttt