-al a-a a-c aaa aac aad aae aaf aah aak aal ac- aca acc acd ace acf ach ack acl ad- ada adc add ade adf adh adk adl aea aec aed aee aef aeh aek ael af- afa afc afd afe aff afh afk afl aha ahc ahd ahe ahf ahh ahk ahl aka akc akd ake akh akk akl al- ala alc ald ale alf alh alk all c-- caa cac cad cae caf cah cak cal cca ccc ccd cce ccf cch cck ccl cda cdc cdd cde cdf cdh cdk cdl ce- cea cec ced cee cef ceh cek cel cfa cfc cfd cfe cff cfh cfk cfl ch- cha chc chd che chf chh chk chl cka ckc ckd ckh cl- cla clc cld cle clf clh clk cll daa dac dad dae daf dah dak dal dca dcc dcd dce dcf dck dcl dda ddc ddd dde ddf ddh ddk ddl de- dea dec ded dee def deh dek del dfa dfc dfd dfe dff dfh dfk dfl dh- dha dhc dhd dhe dhf dhh dhk dhl dka dkc dke dkk dkl dl- dla dlc dld dle dlf dlh dlk dll eaa eac ead eae eaf eah eak eal ec- eca ecc ecd ece ecf ech eck ecl ed- eda edc edd ede edf edh edk edl eea eec eed eee eef eek eel ef- efa efc efd efe eff efh efl eha ehc ehd ehe ehf ehh ehl eka ekc ekd eke ekf ekh ekl ela elc eld ele elf elh elk ell faa fac fad fae faf fah fak fal fca fcc fcd fce fcf fck fcl fda fdc fdd fde fdf fdh fdk fdl fea fec fed fee fef feh fek fel ffa ffc ffd ffe fff ffh ffk ffl fha fhc fhe fhf fhh fhl fka fkc fkf fkk fkl fla flc fld fle flf fll haa hac had hae haf hah hak hal hca hcc hcd hce hcf hch hck hcl hda hdc hdd hde hdf hdh hdk hdl he- hea hec hed hee hef heh hek hel hfa hfc hfd hfe hff hfh hfk hfl hha hhc hhd hhe hhf hhh hhk hhl hka hkd hkf hkh hkk hkl hla hlc hld hle hlf hlh hll ka- kaa kac kad kae kaf kah kak kal kca kcc kcd kce kch kck kcl kda kdc kde kdf kdh kdk kdl ke- kea kec ked kee kef keh kek kel kfa kfc kfd kff kfh kha khe khf khh khk kkc kke kkh kkk kkl kl- kla klc kld klf klh la- laa lac lad lae laf lah lak lal lca lcc lcd lce lcf lch lck lcl lda ldc ldd lde ldf ldh ldk ldl lea lec led lee lef leh lek lel lfa lfc lfd lfe lff lfh lfk lfl lha lhc lhd lhf lhh lhk lka lkh lkl lla llc lld lle llf llk lll