-er c-- ccc cce cch cck ccl ccr ce- cec cee ceh cek cel cer ch- chc che chh chk chl chr ckc ckh cl- clc cle clh clk cll clr crc cre crh crk crl crr ec- ecc ece ech eck ecl ecr eec eee eek eel eer ehc ehe ehh ehl ehr ekc eke ekh ekl ekr elc ele elh elk ell elr erc ere erh erk erl err hcc hce hch hck hcl hcr he- hec hee heh hek hel her hhc hhe hhh hhk hhl hhr hkh hkk hkl hkr hlc hle hlh hll hlr hr- hrc hre hrh hrk hrl hrr kcc kce kch kck kcl kcr ke- kec kee keh kek kel ker khe khh khk khr kkc kke kkh kkk kkl kkr kl- klc klh klr krc krk krl krr lcc lce lch lck lcl lcr lec lee leh lek lel ler lhc lhh lhk lhr lkh lkl lkr llc lle llk lll llr lrc lrh lrk lrr rcc rce rch rcl rcr re- rec ree reh rek rel rer rh- rhc rhe rhh rhl rhr rkc rke rkk rlc rle rlh rll rlr rrc rrh rrk rrl rrr