-er -th c-- ccc cce cch cck ccr ccs cct ccu ce- cec cee ceh cek cer ces cet ceu ch- chc che chh chk chr chs cht chu ckc ckh cks ckt crc cre crh crk crr crs crt cru csc cse csh csk csr css cst csu ctc cte cth ctk ctr cts ctt ctu cuc cue cuh cuk cur cus cut cuu ec- ecc ece ech eck ecr ecs ect ecu eec eee eek eer ees eet ehc ehe ehh ehr ehs eht ehu ekc eke ekh ekr eks ekt eku erc ere erh erk err ers ert eru es- esc ese esh esk esr ess est esu etc ete eth etk etr ets ett etu eu- euc eue eur eus eut hcc hce hch hck hcr hcs hct he- hec hee heh hek her hes het heu hhc hhe hhh hhk hhr hhs hht hhu hkh hkk hkr hks hkt hku hr- hrc hre hrh hrk hrr hrs hrt hru hsc hse hsh hsk hsr hss hst hsu htc hte hth htk htr hts htt huc hue huh huk hur hus hut huu k-t kcc kce kch kck kcr kcs kct kcu ke- kec kee keh kek ker kes ket khe khh khk khr khs khu kkc kke kkh kkk kkr kks kkt kku krc krk krr krs krt kru ksc kse ksh ksk ksr kss kst ksu ktc kte kth ktk ktr kts ktt ktu kuc kue kuh kuk kur kus kut kuu rcc rce rch rcr rcs rct rcu re- rec ree reh rek rer res ret reu rh- rhc rhe rhh rhr rhs rht rhu rkc rke rkk rks rkt rku rrc rrh rrk rrr rrs rrt rru rsc rse rsh rsk rsr rss rst rsu rtc rte rtk rtr rts rtt rtu ruc rue ruh ruk rur rus rut ruu scc sce sch sck scr scs sct scu se- sec see seh sek ser ses set seu sh- shc she shh shk shr shs sht shu sk- skc ske skh skk skr sks skt sku sr- src sre srh srk srr srs srt ss- ssc sse ssh ssk ssr sss sst ssu stc ste sth stk str sts stt stu suc sue suh suk sur sus sut suu tcc tce tch tck tcr tcs tct tcu te- tec tee teh tek ter tes tet teu th- thc the thh thk thr ths tht thu tkc tke tkk tkr tks tkt trc tre trh trk trr trs trt tru tsc tse tsh tsk tsr tss tst tsu ttc tte tth ttk ttr tts ttt ttu tuc tue tuh tuk tur tus tut tuu ucc uce uch uck ucr ucs uct ucu uec uee ueh uer ues uet uhc uhe uhh uhr uhs uht uhu ukc uke ukk ukr uku ur- urc ure urk urr urs urt uru usc use ush usk usr uss ust usu utc ute uth utk utr uts utt utu uuc uue uur uus uut uuu