-al -er a-a a-c a-t aaa aac aad aae aaf aal aar aat ac- aca acc acd ace acf acl acr act ad- ada adc add ade adf adl adr adt aea aec aed aee aef ael aer aet af- afa afc afd afe aff afl afr aft al- ala alc ald ale alf all alr alt ar- ara arc ard are arf arl arr art at- ata atc atd ate atf atl atr att c-- caa cac cad cae caf cal car cat cca ccc ccd cce ccf ccl ccr cct cda cdc cdd cde cdf cdl cdr cdt ce- cea cec ced cee cef cel cer cet cfa cfc cfd cfe cff cfl cfr cft cl- cla clc cld cle clf cll clr clt cra crc crd cre crf crl crr crt cta ctc ctd cte ctf ctl ctr ctt daa dac dad dae daf dal dar dat dca dcc dcd dce dcf dcl dcr dct dda ddc ddd dde ddf ddl ddr ddt de- dea dec ded dee def del der det dfa dfc dfd dfe dff dfl dfr dft dl- dla dlc dld dle dlf dll dlr dlt dra drc drd dre drl drr drt dta dtc dtd dte dtf dtl dtr dtt eaa eac ead eae eaf eal ear eat ec- eca ecc ecd ece ecf ecl ecr ect ed- eda edc edd ede edf edl edr edt eea eec eed eee eef eel eer eet ef- efa efc efd efe eff efl efr eft ela elc eld ele elf ell elr elt era erc erd ere erf erl err ert eta etc etd ete etf etl etr ett faa fac fad fae faf fal far fat fca fcc fcd fce fcf fcl fcr fct fda fdc fdd fde fdf fdl fdr fdt fea fec fed fee fef fel fer fet ffa ffc ffd ffe fff ffl ffr fft fla flc fld fle flf fll flr flt fra frc frd fre frf frl frr frt fta ftc ftd fte ftf ftl ftr ftt la- laa lac lad lae laf lal lar lat lca lcc lcd lce lcf lcl lcr lct lda ldc ldd lde ldf ldl ldr ldt lea lec led lee lef lel ler let lfa lfc lfd lfe lff lfl lfr lft lla llc lld lle llf lll llr llt lra lrc lrd lrf lrr lrt lta ltc ltd lte ltf ltl ltr ltt ra- raa rac rad rae raf ral rar rat rca rcc rcd rce rcf rcl rcr rct rda rdc rdd rde rdf rdl rdr rdt re- rea rec red ree ref rel rer ret rfa rfc rfd rfe rff rfl rfr rft rla rlc rld rle rlf rll rlr rlt rra rrc rrd rrf rrl rrr rrt rta rtc rtd rte rtf rtl rtr rtt taa tac tad tae taf tal tar tat tca tcc tcd tce tcf tcl tcr tct tda tdc tdd tde tdf tdl tdr tdt te- tea tec ted tee tef tel ter tet tfa tfc tfd tfe tff tfl tfr tft tla tlc tld tle tlf tll tlr tlt tra trc trd tre trf trl trr trt tta ttc ttd tte ttf ttl ttr ttt