-al -er a-a a-c aaa aac aad aae aaf aal aar ac- aca acc acd ace acf acl acr ad- ada adc add ade adf adl adr aea aec aed aee aef ael aer af- afa afc afd afe aff afl afr al- ala alc ald ale alf all alr ar- ara arc ard are arf arl arr c-- caa cac cad cae caf cal car cca ccc ccd cce ccf ccl ccr cda cdc cdd cde cdf cdl cdr ce- cea cec ced cee cef cel cer cfa cfc cfd cfe cff cfl cfr cl- cla clc cld cle clf cll clr cra crc crd cre crf crl crr daa dac dad dae daf dal dar dca dcc dcd dce dcf dcl dcr dda ddc ddd dde ddf ddl ddr de- dea dec ded dee def del der dfa dfc dfd dfe dff dfl dfr dl- dla dlc dld dle dlf dll dlr dra drc drd dre drl drr eaa eac ead eae eaf eal ear ec- eca ecc ecd ece ecf ecl ecr ed- eda edc edd ede edf edl edr eea eec eed eee eef eel eer ef- efa efc efd efe eff efl efr ela elc eld ele elf ell elr era erc erd ere erf erl err faa fac fad fae faf fal far fca fcc fcd fce fcf fcl fcr fda fdc fdd fde fdf fdl fdr fea fec fed fee fef fel fer ffa ffc ffd ffe fff ffl ffr fla flc fld fle flf fll flr fra frc frd fre frf frl frr la- laa lac lad lae laf lal lar lca lcc lcd lce lcf lcl lcr lda ldc ldd lde ldf ldl ldr lea lec led lee lef lel ler lfa lfc lfd lfe lff lfl lfr lla llc lld lle llf lll llr lra lrc lrd lrf lrr ra- raa rac rad rae raf ral rar rca rcc rcd rce rcf rcl rcr rda rdc rdd rde rdf rdl rdr re- rea rec red ree ref rel rer rfa rfc rfd rfe rff rfl rfr rla rlc rld rle rlf rll rlr rra rrc rrd rrf rrl rrr