-er c-- c-j ccc cce ccj cck ccl ccr ce- cec cee cej cek cel cer cjc cjk cjr ckc cl- clc cle clj clk cll clr crc cre crj crk crl crr ec- ecc ece ecj eck ecl ecr eec eee eek eel eer ejc ejl ekc eke ekl ekr elc ele elk ell elr erc ere erk erl err jcc jce jck jcl jcr jec jee jej jek jel jer jjc jjj jjk jjl jjr jkk jkl jkr jlc jle jll jlr jrc jrk jrl jrr kcc kce kck kcl kcr ke- kec kee kek kel ker kjc kje kjr kkc kke kkk kkl kkr kl- klc klr krc krk krl krr lcc lce lcj lck lcl lcr lec lee lej lek lel ler lje ljj lkl lkr llc lle llj llk lll llr lrc lrk lrr rcc rce rcj rcl rcr re- rec ree rek rel rer rjc rjk rjr rkc rke rkk rlc rle rll rlr rrc rrk rrl rrr