-al a-a a-c aaa aac aae aaf aah aal ac- aca acc ace acf ach acl aea aec aee aef aeh ael af- afa afc afe aff afh afl aha ahc ahe ahf ahh ahl al- ala alc ale alf alh all c-- caa cac cae caf cah cal cca ccc cce ccf cch ccl ce- cea cec cee cef ceh cel cfa cfc cfe cff cfh cfl ch- cha chc che chf chh chl cl- cla clc cle clf clh cll eaa eac eae eaf eah eal ec- eca ecc ece ecf ech ecl eea eec eee eef eel ef- efa efc efe eff efh efl eha ehc ehe ehf ehh ehl ela elc ele elf elh ell faa fac fae faf fah fal fca fcc fce fcf fcl fea fec fee fef feh fel ffa ffc ffe fff ffh ffl fha fhc fhe fhf fhh fhl fla flc fle flf fll haa hac hae haf hah hal hca hcc hce hcf hch hcl he- hea hec hee hef heh hel hfa hfc hfe hff hfh hfl hha hhc hhe hhf hhh hhl hla hlc hle hlf hlh hll la- laa lac lae laf lah lal lca lcc lce lcf lch lcl lea lec lee lef leh lel lfa lfc lfe lff lfh lfl lha lhc lhf lhh lla llc lle llf lll