-er -ic c-- ccc cce cch cci cco ccr ccs ccu ccx ce- cec cee ceh cei ceo cer ces ceu cex ch- chc che chh chi cho chr chs chu chx ci- cic cie cih cii cio cir cis ciu cix co- coc coe coh coi coo cor cos cou cox crc cre crh cri cro crr crs cru crx csc cse csh csi cso csr css csu csx cuc cue cuh cui cuo cur cus cuu cxc cxh cxi cxo cxr cxs cxx ec- ecc ece ech eci eco ecr ecs ecu ecx eec eee eeo eer ees eex ehc ehe ehh ehi eho ehr ehs ehu eic eie eii eio eir eis eiu eix eo- eoc eoe eoh eoi eoo eor eos eou erc ere erh eri ero err ers eru es- esc ese esh esi eso esr ess esu esx eu- euc eue eui eur eus eux ex- exc exe exh exi exo exr exs exu exx h-i hcc hce hch hci hco hcr hcs he- hec hee heh hei heo her hes heu hex hhc hhe hhh hhi hho hhr hhs hhu hic hie hih hii hio hir his hiu hix hoc hoe hoh hoi hoo hor hos hou hox hr- hrc hre hrh hri hro hrr hrs hru hsc hse hsh hsi hsr hss hsu hsx huc hue huh hui huo hur hus huu hux hxc icc ice ich ici ico icr ics icu ie- iec iee iei ier ies iex ihc ihe ihh ihi iho ihr ihs ihu iic iie iih iii iio iir iis iiu iix io- ioc ioe ioh ioi ioo ior ios iou ir- irc ire iri iro irr irs iru irx is- isc ise ish isi iso isr iss isu iu- iuc iue iui iur ius ixc ixe ixi o-i oc- occ och oci oco ocr ocs ocu ocx oec oee oeh oei oeo oer oes oex ohc ohe ohh ohi oho ohr ohs ohu oic oie oii oio oir ois oiu oo- ooc ooh ooi ooo oor oos oox or- orc ore orh ori oro orr ors oru orx os- osc ose osh osi oso osr oss osu osx ou- ouc oue ouh oui ouo our ous ox- oxc oxi oxo oxx rcc rce rch rci rco rcr rcs rcu rcx re- rec ree reh rei reo rer res reu rex rh- rhc rhe rhh rhi rho rhr rhs rhu ric rie rih rii rio rir ris rix roc roe roh roi roo ror ros rou rox rrc rrh rri rrr rrs rru rsc rse rsh rsi rso rsr rss rsu rsx ruc rue ruh rui ruo rur rus ruu rux rxr rxs scc sce sch sci sco scr scs scu scx se- sec see seh sei seo ser ses seu sex sh- shc she shh shi sho shr shs shu sic sie sih sii sio sir sis siu six soc soe soh soi soo sor sos sou sox sr- src sre srh sri sro srr srs srx ss- ssc sse ssh ssi sso ssr sss ssu ssx suc sue suh sui suo sur sus suu sux sxc sxi sxs sxu ucc uce uch uci uco ucr ucs ucu uec uee ueh uei uer ues uhc uhe uhh uhi uho uhr uhs uhu uic uie uii uio uir uis uiu uoc uoe uoo uor uos uox ur- urc ure uri uro urr urs uru urx usc use ush usi uso usr uss usu usx uuc uue uur uus uuu uxc uxo uxr uxu xch xci xcr xcx xee xer xes xeu xex xic xie xii xio xis xiu xix xoc xoi xoo xor xos xox xrc xrx xsc xsi xss xue xui xus xxi xxo xxx