-ic a-a a-c a-i aaa aac aag aai aan aar aas aau ac- aca acc acg aci acn acr acs acu ag- aga agc agg agi agn agr ags agu ai- aia aic aig aii ain air ais aiu an- ana anc ang ani ann anr ans anu ar- ara arc arg ari arn arr ars aru as- asa asc asg asi asn asr ass asu au- aua auc aug aui aun aur aus c-- caa cac cag cai can car cas cau cca ccc ccg cci ccn ccr ccs ccu cga cgc cgg cgi cgn cgr cgs cgu ci- cia cic cig cii cin cir cis ciu cn- cna cnc cng cni cnn cnr cns cnu cra crc crg cri crn crr crs cru csa csc csg csi csn csr css csu cua cuc cug cui cun cur cus cuu gaa gac gag gai gan gar gas gau gca gcc gcg gci gcn gcr gcs gcu gga ggc ggg ggi ggn ggr ggs ggu gia gic gig gii gin gir gis giu gna gnc gni gnn gnr gns gnu gra grc grg gri grn grr grs gru gsa gsc gsg gsi gsn gsr gss gsu gu- gua guc gug gui gun gur gus guu ia- iaa iac iag iai ian iar ias iau ica icc icg ici icn icr ics icu iga igc igg igi ign igr igs igu iia iic iii iin iir iis iiu in- ina inc ing ini inn inr ins inu ir- ira irc irg iri irn irr irs iru is- isa isc isg isi isn isr iss isu iu- iua iuc iug iui iur ius n-i naa nac nag nai nan nar nas nau nca ncc ncg nci ncn ncr ncs ncu nga ngc ngg ngi ngn ngs ngu nia nic nig nii nin nir nis niu nna nnc nng nni nnn nns nnu nra nrc nrg nri nrn nrr nrs nru nsa nsc nsg nsi nsn nsr nss nsu nua nuc nug nui nun nur nus nuu ra- raa rac rag rai ran rar ras rau rca rcc rcg rci rcn rcr rcs rcu rga rgc rgg rgi rgn rgr rgs ria ric rig rii rin rir ris rna rnc rng rni rnn rnr rns rnu rra rrc rrg rri rrn rrr rrs rru rsa rsc rsg rsi rsn rsr rss rsu rua ruc rug rui run rur rus ruu saa sac sag sai san sar sas sau sca scc scg sci scn scr scs scu sga sgc sgg sgi sgn sgr sgs sgu sia sic sig sii sin sir sis siu sna snc sng sni snn snr sns snu sr- sra src srg sri srn srr srs ss- ssa ssc ssg ssi ssn ssr sss ssu sua suc sug sui sun sur sus suu ua- uaa uac uag uai uan uar uas uau uca ucc ucg uci ucn ucr ucs ucu uga ugc ugg ugi ugn ugr ugs ugu uia uic uig uii uin uir uis uiu un- una unc ung uni unn unr uns unu ur- ura urc urg uri urn urr urs uru usa usc usg usi usn usr uss usu uua uuc uug uun uur uus uuu