-al -ic a-a a-b a-c a-i aaa aab aac aag aai aal aan aar ab- aba abb abc abg abi abl abn abr ac- aca acb acc acg aci acl acn acr ag- aga agb agc agg agi agl agn agr ai- aia aib aic aig aii ail ain air al- ala alb alc alg ali all aln alr an- ana anb anc ang ani anl ann anr ar- ara arb arc arg ari arl arn arr baa bab bac bag bai bal ban bar bba bbb bbc bbg bbi bbl bbn bbr bca bcb bcc bcg bci bcl bcn bcr bga bgb bgc bgg bgi bgl bgn bgr bi- bia bib bic big bii bil bin bir bla blb blc blg bli bll bln blr bna bnb bnc bng bni bnl bnn bnr bra brb brg bri brl brn brr c-- caa cab cac cag cai cal can car cba cbb cbc cbg cbi cbl cbn cbr cca ccb ccc ccg cci ccl ccn ccr cga cgb cgc cgg cgi cgl cgn cgr ci- cia cib cic cig cii cil cin cir cl- cla clb clc clg cli cll cln clr cn- cna cnb cnc cng cni cnl cnn cnr cra crb crc crg cri crl crn crr gaa gab gac gag gai gal gan gar gba gbc gbg gbi gbl gbn gbr gca gcb gcc gcg gci gcl gcn gcr gga ggb ggc ggg ggi ggn ggr gia gib gic gig gii gil gin gir gla glb glc glg gli gll gln glr gna gnb gnc gni gnl gnn gnr gra grb grc grg gri grl grn grr ia- iaa iab iac iag iai ial ian iar iba ibb ibc ibg ibi ibl ibn ibr ica icb icc icg ici icl icn icr iga igb igc igg igi igl ign igr iia iib iic iii iil iin iir il- ila ilb ilc ilg ili ill iln ilr in- ina inb inc ing ini inl inn inr ir- ira irb irc irg iri irl irn irr la- laa lab lac lag lai lal lan lar lba lbb lbc lbg lbi lbl lbr lca lcb lcc lcg lci lcl lcn lcr lga lgb lgc lgg lgi lgl lgn lgr lia lib lic lig lii lil lin lir lla llb llc llg lli lll lln llr lna lnb lnc lng lni lnl lnn lnr lra lrb lrc lrg lri lrn lrr n-i naa nab nac nag nai nal nan nar nba nbb nbc nbg nbi nbl nbn nbr nca ncb ncc ncg nci ncl ncn ncr nga ngb ngc ngg ngi ngl ngn nia nib nic nig nii nil nin nir nla nlb nlc nlg nli nll nln nlr nna nnb nnc nng nni nnl nnn nra nrb nrc nrg nri nrl nrn nrr ra- raa rab rac rag rai ral ran rar rba rbb rbc rbg rbi rbl rbn rbr rca rcb rcc rcg rci rcl rcn rcr rga rgb rgc rgg rgi rgn rgr ria rib ric rig rii ril rin rir rla rlc rlg rli rll rln rlr rna rnb rnc rng rni rnn rnr rra rrb rrc rrg rri rrl rrn rrr