-er c-- ccc cce cch cco ccr ccs ccu ce- cec cee ceh ceo cer ces ceu ch- chc che chh cho chr chs chu co- coc coe coh coo cor cos cou crc cre crh cro crr crs cru csc cse csh cso csr css csu cuc cue cuh cuo cur cus cuu ec- ecc ece ech eco ecr ecs ecu eec eee eeo eer ees ehc ehe ehh eho ehr ehs ehu eo- eoc eoe eoh eoo eor eos eou erc ere erh ero err ers eru es- esc ese esh eso esr ess esu eu- euc eue eur eus hcc hce hch hco hcr hcs he- hec hee heh heo her hes heu hhc hhe hhh hho hhr hhs hhu hoc hoe hoh hoo hor hos hou hr- hrc hre hrh hro hrr hrs hru hsc hse hsh hsr hss hsu huc hue huh huo hur hus huu oc- occ och oco ocr ocs ocu oec oee oeh oeo oer oes ohc ohe ohh oho ohr ohs ohu oo- ooc ooh ooo oor oos or- orc ore orh oro orr ors oru os- osc ose osh oso osr oss osu ou- ouc oue ouh ouo our ous rcc rce rch rco rcr rcs rcu re- rec ree reh reo rer res reu rh- rhc rhe rhh rho rhr rhs rhu roc roe roh roo ror ros rou rrc rrh rrr rrs rru rsc rse rsh rso rsr rss rsu ruc rue ruh ruo rur rus ruu scc sce sch sco scr scs scu se- sec see seh seo ser ses seu sh- shc she shh sho shr shs shu soc soe soh soo sor sos sou sr- src sre srh sro srr srs ss- ssc sse ssh sso ssr sss ssu suc sue suh suo sur sus suu ucc uce uch uco ucr ucs ucu uec uee ueh uer ues uhc uhe uhh uho uhr uhs uhu uoc uoe uoo uor uos ur- urc ure uro urr urs uru usc use ush uso usr uss usu uuc uue uur uus uuu