-er c-- ccc cce cck ccl ccr cct ccu ce- cec cee cek cel cer cet ceu ckc ckt cl- clc cle clk cll clr clt clu crc cre crk crl crr crt cru ctc cte ctk ctl ctr ctt ctu cuc cue cuk cul cur cut cuu ec- ecc ece eck ecl ecr ect ecu eec eee eek eel eer eet ekc eke ekl ekr ekt eku elc ele elk ell elr elt elu erc ere erk erl err ert eru etc ete etk etl etr ett etu eu- euc eue eul eur eut k-t kcc kce kck kcl kcr kct kcu ke- kec kee kek kel ker ket kkc kke kkk kkl kkr kkt kku kl- klc klr klt klu krc krk krl krr krt kru ktc kte ktk ktl ktr ktt ktu kuc kue kuk kul kur kut kuu lcc lce lck lcl lcr lct lcu lec lee lek lel ler let leu lkl lkr lkt llc lle llk lll llr llt llu lrc lrk lrr lrt lru ltc lte ltk ltl ltr ltt ltu luc lue luk lul lur lut luu rcc rce rcl rcr rct rcu re- rec ree rek rel rer ret reu rkc rke rkk rkt rku rlc rle rll rlr rlt rlu rrc rrk rrl rrr rrt rru rtc rte rtk rtl rtr rtt rtu ruc rue ruk rur rut ruu tcc tce tck tcl tcr tct tcu te- tec tee tek tel ter tet teu tkc tke tkk tkl tkr tkt tlc tle tlk tll tlr tlt tlu trc tre trk trl trr trt tru ttc tte ttk ttl ttr ttt ttu tuc tue tuk tul tur tut tuu ucc uce uck ucl ucr uct ucu uec uee uel uer uet ukc uke ukk ukl ukr uku ulc ule ulk ull ulr ult ulu ur- urc ure urk url urr urt uru utc ute utk utl utr utt utu uuc uue uur uut uuu