-ic c-- ccc cci cco ccr ccs ccu ccx ci- cic cii cio cir cis ciu cix co- coc coi coo cor cos cou cox coy crc cri cro crr crs cru crx cry csc csi cso csr css csu csx csy cuc cui cuo cur cus cuu cuy cxc cxi cxo cxr cxs cxx cyc cyo cyr cys icc ici ico icr ics icu icy iic iii iio iir iis iiu iix io- ioc ioi ioo ior ios iou ir- irc iri iro irr irs iru irx iry is- isc isi iso isr iss isu isy iu- iuc iui iur ius ixc ixi ixy iyc iyo iyr iys iyy o-i oc- occ oci oco ocr ocs ocu ocx oic oii oio oir ois oiu oo- ooc ooi ooo oor oos oox or- orc ori oro orr ors oru orx ory os- osc osi oso osr oss osu osx ou- ouc oui ouo our ous ox- oxc oxi oxo oxx oxy oyi oyo oys rcc rci rco rcr rcs rcu rcx ric rii rio rir ris rix riy roc roi roo ror ros rou rox roy rrc rri rrr rrs rru rsc rsi rso rsr rss rsu rsx ruc rui ruo rur rus ruu rux ruy rxr rxs ry- ryc ryo ryr rys ryu ryy scc sci sco scr scs scu scx sic sii sio sir sis siu six soc soi soo sor sos sou sox soy sr- src sri sro srr srs srx sry ss- ssc ssi sso ssr sss ssu ssx suc sui suo sur sus suu sux suy sxc sxi sxs sxu sy- syc syi syr sys syu syx ucc uci uco ucr ucs ucu uic uii uio uir uis uiu uoc uoo uor uos uox ur- urc uri uro urr urs uru urx ury usc usi uso usr uss usu usx uuc uur uus uuu uxc uxo uxr uxu uyc uyi uyo uys uyu xci xcr xcx xic xii xio xis xiu xix xoc xoi xoo xor xos xox xrc xrx xry xsc xsi xss xui xus xxi xxo xxx xxy xyr xyy ycc yci yco ycs ycu ycy yii yio yir yis yoc yoi yoo yor yos you yox yoy yrc yro yrs yru ysc ysi yso ysr yss ysu ysy yui yuo yur yus yuu yux yuy yxy yyc yys yyu yyy