-ic -th c-- ccc cch cci ccr ccs cct ccx ch- chc chh chi chr chs cht chx chy ci- cic cih cii cir cis cit cix crc crh cri crr crs crt crx cry csc csh csi csr css cst csx csy ctc cth cti ctr cts ctt ctx cty cxc cxh cxi cxr cxs cxt cxx cyc cyr cys cyt h-i hcc hch hci hcr hcs hct hcy hhc hhh hhi hhr hhs hht hhy hic hih hii hir his hit hix hr- hrc hrh hri hrr hrs hrt hsc hsh hsi hsr hss hst hsx hsy htc hth hti htr hts htt htx hty hxc hy- hyc hyh hyi hyr hys hyt hyy icc ich ici icr ics ict icy ihc ihh ihi ihr ihs iht ihy iic iih iii iir iis iit iix ir- irc iri irr irs irt irx iry is- isc ish isi isr iss ist isy itc ith iti its itt itx ity ixc ixi ixy iyc iyr iys iyt iyy rcc rch rci rcr rcs rct rcx rh- rhc rhh rhi rhr rhs rht ric rih rii rir ris rit rix riy rrc rrh rri rrr rrs rrt rsc rsh rsi rsr rss rst rsx rtc rti rtr rts rtt rtx rty rxr rxs ry- ryc ryr rys ryy scc sch sci scr scs sct scx sh- shc shh shi shr shs sht shy sic sih sii sir sis sit six sr- src srh sri srr srs srt srx sry ss- ssc ssh ssi ssr sss sst ssx stc sth sti str sts stt stx sty sxc sxi sxs sxt sy- syc syh syi syr sys syt syx t-x tcc tch tci tcr tcs tct tcx th- thc thh thi thr ths tht thx thy tic tih tii tir tis tit tix tiy trc trh tri trr trs trt trx try tsc tsh tsi tsr tss tst tsx tsy ttc tth tti ttr tts ttt ttx tty txi txs txt tyc tyr tys tyt xch xci xcr xcx xht xic xii xis xit xix xrc xrt xrx xry xsc xsi xss xst xtc xti xtr xts xtx xty xxi xxx xxy xyr xyy ycc ych yci ycs ycy yhc yhi yhs yht yih yii yir yis yit yrc yrs yrt ysc ysi ysr yss yst ysy ytc yth ytr yts ytt yxy yyc yys yyt yyy