-ic a-a a-b a-c a-i aaa aab aac aag aai aan aas aau ab- aba abb abc abg abi abn abs abu ac- aca acb acc acg aci acn acs acu ag- aga agb agc agg agi agn ags agu ai- aia aib aic aig aii ain ais aiu an- ana anb anc ang ani ann ans anu as- asa asb asc asg asi asn ass asu au- aua aub auc aug aui aun aus b-u baa bab bac bag bai ban bas bau bba bbb bbc bbg bbi bbn bbs bbu bca bcb bcc bcg bci bcn bcs bcu bga bgb bgc bgg bgi bgn bgs bgu bi- bia bib bic big bii bin bis biu bna bnb bnc bng bni bnn bns bnu bsa bsb bsc bsg bsi bsn bss bsu bua bub buc bug bui bun bus buu c-- caa cab cac cag cai can cas cau cba cbb cbc cbg cbi cbn cbs cbu cca ccb ccc ccg cci ccn ccs ccu cga cgb cgc cgg cgi cgn cgs cgu ci- cia cib cic cig cii cin cis ciu cn- cna cnb cnc cng cni cnn cns cnu csa csb csc csg csi csn css csu cua cub cuc cug cui cun cus cuu gaa gab gac gag gai gan gas gau gba gbc gbg gbi gbn gbs gbu gca gcb gcc gcg gci gcn gcs gcu gga ggb ggc ggg ggi ggn ggs ggu gia gib gic gig gii gin gis giu gna gnb gnc gni gnn gns gnu gsa gsb gsc gsg gsi gsn gss gsu gu- gua gub guc gug gui gun gus guu ia- iaa iab iac iag iai ian ias iau iba ibb ibc ibg ibi ibn ibs ibu ica icb icc icg ici icn ics icu iga igb igc igg igi ign igs igu iia iib iic iii iin iis iiu in- ina inb inc ing ini inn ins inu is- isa isb isc isg isi isn iss isu iu- iua iub iuc iug iui ius n-i naa nab nac nag nai nan nas nau nba nbb nbc nbg nbi nbn nbs nbu nca ncb ncc ncg nci ncn ncs ncu nga ngb ngc ngg ngi ngn ngs ngu nia nib nic nig nii nin nis niu nna nnb nnc nng nni nnn nns nnu nsa nsb nsc nsg nsi nsn nss nsu nua nub nuc nug nui nun nus nuu saa sab sac sag sai san sas sau sba sbb sbc sbg sbi sbn sbs sbu sca scb scc scg sci scn scs scu sga sgb sgc sgg sgi sgn sgs sgu sia sib sic sig sii sin sis siu sna snb snc sng sni snn sns snu ss- ssa ssb ssc ssg ssi ssn sss ssu sua sub suc sug sui sun sus suu ua- uaa uab uac uag uai uan uas uau uba ubb ubc ubg ubi ubn ubs ubu uca ucb ucc ucg uci ucn ucs ucu uga ugb ugc ugg ugi ugn ugs ugu uia uib uic uig uii uin uis uiu un- una unb unc ung uni unn uns unu usa usb usc usg usi usn uss usu uua uuc uug uun uus uuu