-al -ic a-a a-b a-c a-i aaa aab aac aai aal aan aas ab- aba abb abc abi abl abn abs ac- aca acb acc aci acl acn acs ai- aia aib aic aii ail ain ais al- ala alb alc ali all aln als an- ana anb anc ani anl ann ans as- asa asb asc asi asl asn ass baa bab bac bai bal ban bas bba bbb bbc bbi bbl bbn bbs bca bcb bcc bci bcl bcn bcs bi- bia bib bic bii bil bin bis bla blb blc bli bll bln bls bna bnb bnc bni bnl bnn bns bsa bsb bsc bsi bsl bsn bss c-- caa cab cac cai cal can cas cba cbb cbc cbi cbl cbn cbs cca ccb ccc cci ccl ccn ccs ci- cia cib cic cii cil cin cis cl- cla clb clc cli cll cln cls cn- cna cnb cnc cni cnl cnn cns csa csb csc csi csl csn css ia- iaa iab iac iai ial ian ias iba ibb ibc ibi ibl ibn ibs ica icb icc ici icl icn ics iia iib iic iii iil iin iis il- ila ilb ilc ili ill iln ils in- ina inb inc ini inl inn ins is- isa isb isc isi isl isn iss la- laa lab lac lai lal lan las lba lbb lbc lbi lbl lbs lca lcb lcc lci lcl lcn lcs lia lib lic lii lil lin lis lla llb llc lli lll lln lls lna lnb lnc lni lnl lnn lns lsa lsb lsc lsi lsl lsn lss n-i naa nab nac nai nal nan nas nba nbb nbc nbi nbl nbn nbs nca ncb ncc nci ncl ncn ncs nia nib nic nii nil nin nis nla nlb nlc nli nll nln nls nna nnb nnc nni nnl nnn nns nsa nsb nsc nsi nsl nsn nss saa sab sac sai sal san sas sba sbb sbc sbi sbl sbn sbs sca scb scc sci scl scn scs sia sib sic sii sil sin sis sla slb slc sli sll sln sls sna snb snc sni snl snn sns ss- ssa ssb ssc ssi ssl ssn sss