-er c-- ccc cce cch ccr ccu ccx ce- cec cee ceh ceq cer ceu cex ch- chc che chh chq chr chu chx cqc crc cre crh crq crr cru crx cuc cue cuh cuq cur cuu cxc cxh cxr cxx ec- ecc ece ech ecq ecr ecu ecx eec eee eer eex ehc ehe ehh ehr ehu eqe eqq equ erc ere erh erq err eru eu- euc eue eur eux ex- exc exe exh exr exu exx hcc hce hch hcr he- hec hee heh her heu hex hhc hhe hhh hhr hhu hqx hr- hrc hre hrh hrr hru huc hue huh huq hur huu hux hxc qcc qec qee qeh qex qhc qqq qqu qrc qre qrh qru qu- que quh qur qux qxe rcc rce rch rcr rcu rcx re- rec ree reh req rer reu rex rh- rhc rhe rhh rhr rhu rqc rrc rrh rrq rrr rru ruc rue ruh rur ruu rux rxr ucc uce uch ucr ucu uec uee ueh uer uhc uhe uhh uhq uhr uhu ur- urc ure urr uru urx uuc uue uur uuu uxc uxr uxu xch xcr xcx xee xeq xer xeu xex xrc xrx xue xxx