-al a-a a-c aaa aac aae aaf aal aan ac- aca acc ace acf acl acn aea aec aee aef ael aen af- afa afc afe aff afl afn al- ala alc ale alf all aln an- ana anc ane anf anl ann c-- caa cac cae caf cal can cca ccc cce ccf ccl ccn ce- cea cec cee cef cel cen cfa cfc cfe cff cfl cfn cl- cla clc cle clf cll cln cn- cna cnc cne cnf cnl cnn eaa eac eae eaf eal ean ec- eca ecc ece ecf ecl ecn eea eec eee eef eel een ef- efa efc efe eff efl ela elc ele elf ell eln en- ena enc ene enf enl enn faa fac fae faf fal fan fca fcc fce fcf fcl fcn fea fec fee fef fel fen ffa ffc ffe fff ffl ffn fla flc fle flf fll fln fna fnc fne fnf fnl fnn la- laa lac lae laf lal lan lca lcc lce lcf lcl lcn lea lec lee lef lel len lfa lfc lfe lff lfl lfn lla llc lle llf lll lln lna lnc lne lnl lnn naa nac nae naf nal nan nca ncc nce ncf ncl ncn ne- nea nec nee nef nel nen nfa nfc nfe nff nfl nfn nla nlc nle nlf nll nln nna nnc nne nnf nnl nnn