-al -er a-a a-c aaa aac aad aae aaf aal aan aar ac- aca acc acd ace acf acl acn acr ad- ada adc add ade adf adl adn adr aea aec aed aee aef ael aen aer af- afa afc afd afe aff afl afn afr al- ala alc ald ale alf all aln alr an- ana anc and ane anf anl ann anr ar- ara arc ard are arf arl arn arr c-- caa cac cad cae caf cal can car cca ccc ccd cce ccf ccl ccn ccr cda cdc cdd cde cdf cdl cdn cdr ce- cea cec ced cee cef cel cen cer cfa cfc cfd cfe cff cfl cfn cfr cl- cla clc cld cle clf cll cln clr cn- cna cnc cnd cne cnf cnl cnn cnr cra crc crd cre crf crl crn crr daa dac dad dae daf dal dan dar dca dcc dcd dce dcf dcl dcn dcr dda ddc ddd dde ddf ddl ddn ddr de- dea dec ded dee def del den der dfa dfc dfd dfe dff dfl dfn dfr dl- dla dlc dld dle dlf dll dlr dna dnc dnd dne dnf dnl dnn dnr dra drc drd dre drl drn drr eaa eac ead eae eaf eal ean ear ec- eca ecc ecd ece ecf ecl ecn ecr ed- eda edc edd ede edf edl edn edr eea eec eed eee eef eel een eer ef- efa efc efd efe eff efl efr ela elc eld ele elf ell eln elr en- ena enc end ene enf enl enn enr era erc erd ere erf erl ern err faa fac fad fae faf fal fan far fca fcc fcd fce fcf fcl fcn fcr fda fdc fdd fde fdf fdl fdn fdr fea fec fed fee fef fel fen fer ffa ffc ffd ffe fff ffl ffn ffr fla flc fld fle flf fll fln flr fna fnc fnd fne fnf fnl fnn fnr fra frc frd fre frf frl frn frr la- laa lac lad lae laf lal lan lar lca lcc lcd lce lcf lcl lcn lcr lda ldc ldd lde ldf ldl ldn ldr lea lec led lee lef lel len ler lfa lfc lfd lfe lff lfl lfn lfr lla llc lld lle llf lll lln llr lna lnc lnd lne lnl lnn lnr lra lrc lrd lrf lrn lrr naa nac nad nae naf nal nan nar nca ncc ncd nce ncf ncl ncn ncr nda ndc ndd nde ndf ndl ndn ndr ne- nea nec ned nee nef nel nen ner nfa nfc nfd nfe nff nfl nfn nfr nla nlc nld nle nlf nll nln nlr nna nnc nne nnf nnl nnn nra nrc nrd nre nrf nrl nrn nrr ra- raa rac rad rae raf ral ran rar rca rcc rcd rce rcf rcl rcn rcr rda rdc rdd rde rdf rdl rdn rdr re- rea rec red ree ref rel ren rer rfa rfc rfd rfe rff rfl rfn rfr rla rlc rld rle rlf rll rln rlr rna rnc rnd rnn rnr rra rrc rrd rrf rrl rrn rrr