-er -ic c-- ccc cce ccf cci cck ccl ccr cct ce- cec cee cef cei cek cel cer cet cfc cfe cff cfi cfk cfl cfr cft ci- cic cie cif cii cik cil cir cit ckc cki ckt cl- clc cle clf cli clk cll clr clt crc cre crf cri crk crl crr crt ctc cte ctf cti ctk ctl ctr ctt ec- ecc ece ecf eci eck ecl ecr ect eec eee eef eek eel eer eet ef- efc efe eff efi efl efr eft eic eie eif eii eik eil eir eit ekc eke ekf eki ekl ekr ekt elc ele elf eli elk ell elr elt erc ere erf eri erk erl err ert etc ete etf eti etk etl etr ett fcc fce fcf fci fck fcl fcr fct fec fee fef fei fek fel fer fet ffc ffe fff ffi ffk ffl ffr fft fic fie fif fii fik fil fir fit fkc fkf fki fkk fkl fkt flc fle flf fli fll flr flt frc fre frf fri frk frl frr frt ftc fte ftf fti ftk ftl ftr ftt i-f icc ice icf ici ick icl icr ict ie- iec iee ief iei iek iel ier iet ifc ife iff ifi ifl ifr ift iic iie iif iii iil iir iit ikc ike ikf iki ikk ikl ikr ikt il- ilc ile ilf ili ilk ill ilr ilt ir- irc ire irf iri irk irl irr irt itc ite itf iti itk itl itt k-t kcc kce kci kck kcl kcr kct ke- kec kee kef kei kek kel ker ket kfc kff kfi kic kie kif kii kik kil kir kit kkc kke kki kkk kkl kkr kkt kl- klc klf kli klr klt krc krf kri krk krl krr krt ktc kte ktf ktk ktl ktr ktt lcc lce lcf lci lck lcl lcr lct lec lee lef lei lek lel ler let lfc lfe lff lfi lfk lfl lfr lft lic lie lif lii lik lil lir lit lkl lkr lkt llc lle llf lli llk lll llr llt lrc lrf lri lrk lrr lrt ltc lte ltf lti ltk ltl ltr ltt rcc rce rcf rci rcl rcr rct re- rec ree ref rei rek rel rer ret rfc rfe rff rfi rfk rfl rfr rft ric rie rif rii rik ril rir rit rkc rke rkf rkk rkt rlc rle rlf rli rll rlr rlt rrc rrf rri rrk rrl rrr rrt rtc rte rtf rti rtk rtl rtr rtt tcc tce tcf tci tck tcl tcr tct te- tec tee tef tei tek tel ter tet tfc tfe tff tfi tfk tfl tfr tft tic tie tif tii tik til tir tit tkc tke tkk tkl tkr tkt tlc tle tlf tli tlk tll tlr tlt trc tre trf tri trk trl trr trt ttc tte ttf tti ttk ttl ttr ttt