-er -ic c-- ccc ccd cce ccf cci cck ccl ccr cct cdc cdd cde cdf cdi cdk cdl cdr cdt ce- cec ced cee cef cei cek cel cer cet cfc cfd cfe cff cfi cfk cfl cfr cft ci- cic cid cie cif cii cik cil cir cit ckc ckd cki ckt cl- clc cld cle clf cli clk cll clr clt crc crd cre crf cri crk crl crr crt ctc ctd cte ctf cti ctk ctl ctr ctt dcc dcd dce dcf dci dck dcl dcr dct ddc ddd dde ddf ddi ddk ddl ddr ddt de- dec ded dee def dei dek del der det dfc dfd dfe dff dfi dfk dfl dfr dft di- dic did die dif dii dik dil dir dit dkc dke dki dkk dkl dkr dkt dl- dlc dld dle dlf dli dlk dll dlr dlt drc drd dre dri drk drl drr drt dtc dtd dte dtf dti dtk dtl dtr dtt ec- ecc ecd ece ecf eci eck ecl ecr ect ed- edc edd ede edf edi edk edl edr edt eec eed eee eef eek eel eer eet ef- efc efd efe eff efi efl efr eft eic eid eie eif eii eik eil eir eit ekc ekd eke ekf eki ekl ekr ekt elc eld ele elf eli elk ell elr elt erc erd ere erf eri erk erl err ert etc etd ete etf eti etk etl etr ett fcc fcd fce fcf fci fck fcl fcr fct fdc fdd fde fdf fdi fdk fdl fdr fdt fec fed fee fef fei fek fel fer fet ffc ffd ffe fff ffi ffk ffl ffr fft fic fid fie fif fii fik fil fir fit fkc fkf fki fkk fkl fkt flc fld fle flf fli fll flr flt frc frd fre frf fri frk frl frr frt ftc ftd fte ftf fti ftk ftl ftr ftt i-d i-f icc icd ice icf ici ick icl icr ict idc idd ide idf idi idk idl idr idt ie- iec ied iee ief iei iek iel ier iet ifc ifd ife iff ifi ifl ifr ift iic iid iie iif iii iil iir iit ikc ike ikf iki ikk ikl ikr ikt il- ilc ild ile ilf ili ilk ill ilr ilt ir- irc ird ire irf iri irk irl irr irt itc itd ite itf iti itk itl itt k-t kcc kcd kce kci kck kcl kcr kct kdc kde kdf kdk kdl kdr kdt ke- kec ked kee kef kei kek kel ker ket kfc kfd kff kfi kic kid kie kif kii kik kil kir kit kkc kke kki kkk kkl kkr kkt kl- klc kld klf kli klr klt krc krd krf kri krk krl krr krt ktc kte ktf ktk ktl ktr ktt lcc lcd lce lcf lci lck lcl lcr lct ldc ldd lde ldf ldi ldk ldl ldr ldt lec led lee lef lei lek lel ler let lfc lfd lfe lff lfi lfk lfl lfr lft lic lid lie lif lii lik lil lir lit lkl lkr lkt llc lld lle llf lli llk lll llr llt lrc lrd lrf lri lrk lrr lrt ltc ltd lte ltf lti ltk ltl ltr ltt rcc rcd rce rcf rci rcl rcr rct rdc rdd rde rdf rdi rdl rdr rdt re- rec red ree ref rei rek rel rer ret rfc rfd rfe rff rfi rfk rfl rfr rft ric rid rie rif rii rik ril rir rit rkc rke rkf rkk rkt rlc rld rle rlf rli rll rlr rlt rrc rrd rrf rri rrk rrl rrr rrt rtc rtd rte rtf rti rtk rtl rtr rtt tcc tcd tce tcf tci tck tcl tcr tct tdc tdd tde tdf tdi tdk tdl tdr tdt te- tec ted tee tef tei tek tel ter tet tfc tfd tfe tff tfi tfk tfl tfr tft tic tid tie tif tii tik til tir tit tkc tke tkk tkl tkr tkt tlc tld tle tlf tli tlk tll tlr tlt trc trd tre trf tri trk trl trr trt ttc ttd tte ttf tti ttk ttl ttr ttt