-al a-a a-c aaa aac aad aae aaf aal aas ac- aca acc acd ace acf acl acs ad- ada adc add ade adf adl ads aea aec aed aee aef ael aes af- afa afc afd afe aff afl afs al- ala alc ald ale alf all als as- asa asc asd ase asf asl ass c-- caa cac cad cae caf cal cas cca ccc ccd cce ccf ccl ccs cda cdc cdd cde cdf cdl cds ce- cea cec ced cee cef cel ces cfa cfc cfd cfe cff cfl cfs cl- cla clc cld cle clf cll cls csa csc csd cse csf csl css daa dac dad dae daf dal das dca dcc dcd dce dcf dcl dcs dda ddc ddd dde ddf ddl dds de- dea dec ded dee def del des dfa dfc dfd dfe dff dfl dfs dl- dla dlc dld dle dlf dll dls dsa dsc dsd dse dsf dsl dss eaa eac ead eae eaf eal eas ec- eca ecc ecd ece ecf ecl ecs ed- eda edc edd ede edf edl eds eea eec eed eee eef eel ees ef- efa efc efd efe eff efl efs ela elc eld ele elf ell els es- esa esc esd ese esf esl ess faa fac fad fae faf fal fas fca fcc fcd fce fcf fcl fcs fda fdc fdd fde fdf fdl fds fea fec fed fee fef fel fes ffa ffc ffd ffe fff ffl ffs fla flc fld fle flf fll fls fsa fsc fsd fse fsf fsl fss la- laa lac lad lae laf lal las lca lcc lcd lce lcf lcl lcs lda ldc ldd lde ldf ldl lds lea lec led lee lef lel les lfa lfc lfd lfe lff lfl lfs lla llc lld lle llf lll lls lsa lsc lsd lse lsf lsl lss saa sac sad sae saf sal sas sca scc scd sce scf scl scs sda sdc sdd sde sdf sdl sds se- sea sec sed see sef sel ses sfa sfc sfd sfe sff sfl sfs sla slc sld sle slf sll sls ss- ssa ssc ssd sse ssf ssl sss