-al a-a a-c aaa aac aad aae aak aal ac- aca acc acd ace ack acl ad- ada adc add ade adk adl aea aec aed aee aek ael aka akc akd ake akk akl al- ala alc ald ale alk all c-- caa cac cad cae cak cal cca ccc ccd cce cck ccl cda cdc cdd cde cdk cdl ce- cea cec ced cee cek cel cka ckc ckd cl- cla clc cld cle clk cll daa dac dad dae dak dal dca dcc dcd dce dck dcl dda ddc ddd dde ddk ddl de- dea dec ded dee dek del dka dkc dke dkk dkl dl- dla dlc dld dle dlk dll eaa eac ead eae eak eal ec- eca ecc ecd ece eck ecl ed- eda edc edd ede edk edl eea eec eed eee eek eel eka ekc ekd eke ekl ela elc eld ele elk ell ka- kaa kac kad kae kak kal kca kcc kcd kce kck kcl kda kdc kde kdk kdl ke- kea kec ked kee kek kel kkc kke kkk kkl kl- kla klc kld la- laa lac lad lae lak lal lca lcc lcd lce lck lcl lda ldc ldd lde ldk ldl lea lec led lee lek lel lka lkl lla llc lld lle llk lll