-al -er -ic a-a a-c a-i aaa aac aad aae aag aai aal aar ac- aca acc acd ace acg aci acl acr ad- ada adc add ade adg adi adl adr aea aec aed aee aeg aei ael aer ag- aga agc agd age agg agi agl agr ai- aia aic aid aie aig aii ail air al- ala alc ald ale alg ali all alr ar- ara arc ard are arg ari arl arr c-- caa cac cad cae cag cai cal car cca ccc ccd cce ccg cci ccl ccr cda cdc cdd cde cdg cdi cdl cdr ce- cea cec ced cee ceg cei cel cer cga cgc cgd cge cgg cgi cgl cgr ci- cia cic cid cie cig cii cil cir cl- cla clc cld cle clg cli cll clr cra crc crd cre crg cri crl crr daa dac dad dae dag dai dal dar dca dcc dcd dce dcg dci dcl dcr dda ddc ddd dde ddg ddi ddl ddr de- dea dec ded dee deg dei del der dga dgc dgd dge dgg dgi dgl dgr di- dia dic did die dig dii dil dir dl- dla dlc dld dle dlg dli dll dlr dra drc drd dre drg dri drl drr eaa eac ead eae eag eai eal ear ec- eca ecc ecd ece ecg eci ecl ecr ed- eda edc edd ede edg edi edl edr eea eec eed eee eeg eel eer ega egc egd ege egg egi egl egr eia eic eid eie eig eii eil eir ela elc eld ele elg eli ell elr era erc erd ere erg eri erl err g-d gaa gac gad gae gag gai gal gar gca gcc gcd gce gcg gci gcl gcr gda gdc gdd gde gdi gdl gdr ge- gea gec ged gee geg gei gel ger gga ggc ggd ggg ggi ggr gia gic gid gie gig gii gil gir gla glc gld gle glg gli gll glr gra grc grd gre grg gri grl grr i-d ia- iaa iac iad iae iag iai ial iar ica icc icd ice icg ici icl icr ida idc idd ide idg idi idl idr ie- iea iec ied iee ieg iei iel ier iga igc igd ige igg igi igl igr iia iic iid iie iii iil iir il- ila ilc ild ile ilg ili ill ilr ir- ira irc ird ire irg iri irl irr la- laa lac lad lae lag lai lal lar lca lcc lcd lce lcg lci lcl lcr lda ldc ldd lde ldg ldi ldl ldr lea lec led lee leg lei lel ler lga lgc lgd lge lgg lgi lgl lgr lia lic lid lie lig lii lil lir lla llc lld lle llg lli lll llr lra lrc lrd lrg lri lrr ra- raa rac rad rae rag rai ral rar rca rcc rcd rce rcg rci rcl rcr rda rdc rdd rde rdg rdi rdl rdr re- rea rec red ree reg rei rel rer rga rgc rgd rge rgg rgi rgr ria ric rid rie rig rii ril rir rla rlc rld rle rlg rli rll rlr rra rrc rrd rrg rri rrl rrr