a-a a-c aaa aac aae aaf aah aan aas ac- aca acc ace acf ach acn acs aea aec aee aef aeh aen aes af- afa afc afe aff afh afn afs aha ahc ahe ahf ahh ahn ahs an- ana anc ane anf anh ann ans as- asa asc ase asf ash asn ass c-- caa cac cae caf cah can cas cca ccc cce ccf cch ccn ccs ce- cea cec cee cef ceh cen ces cfa cfc cfe cff cfh cfn cfs ch- cha chc che chf chh chn chs cn- cna cnc cne cnf cnh cnn cns csa csc cse csf csh csn css eaa eac eae eaf eah ean eas ec- eca ecc ece ecf ech ecn ecs eea eec eee eef een ees ef- efa efc efe eff efh efs eha ehc ehe ehf ehh ehn ehs en- ena enc ene enf enh enn ens es- esa esc ese esf esh esn ess faa fac fae faf fah fan fas fca fcc fce fcf fcn fcs fea fec fee fef feh fen fes ffa ffc ffe fff ffh ffn ffs fha fhc fhe fhf fhh fhn fhs fna fnc fne fnf fnh fnn fns fsa fsc fse fsf fsh fsn fss haa hac hae haf hah han has hca hcc hce hcf hch hcn hcs he- hea hec hee hef heh hen hes hfa hfc hfe hff hfh hfn hfs hha hhc hhe hhf hhh hhn hhs hna hnc hne hnf hnh hnn hns hsa hsc hse hsf hsh hsn hss naa nac nae naf nah nan nas nca ncc nce ncf nch ncn ncs ne- nea nec nee nef neh nen nes nfa nfc nfe nff nfn nfs nha nhc nhe nhf nhh nhn nhs nna nnc nne nnf nnh nnn nns nsa nsc nse nsf nsh nsn nss saa sac sae saf sah san sas sca scc sce scf sch scn scs se- sea sec see sef seh sen ses sfa sfc sfe sff sfh sfn sfs sh- sha shc she shf shh shn shs sna snc sne snf snn sns ss- ssa ssc sse ssf ssh ssn sss