a-a a-c aaa aac aah aan aar aas ac- aca acc ach acn acr acs aha ahc ahh ahn ahr ahs an- ana anc anh ann anr ans ar- ara arc arh arn arr ars as- asa asc ash asn asr ass c-- caa cac cah can car cas cca ccc cch ccn ccr ccs ch- cha chc chh chn chr chs cn- cna cnc cnh cnn cnr cns cra crc crh crn crr crs csa csc csh csn csr css haa hac hah han har has hca hcc hch hcn hcr hcs hha hhc hhh hhn hhr hhs hna hnc hnh hnn hns hr- hra hrc hrh hrn hrr hrs hsa hsc hsh hsn hsr hss naa nac nah nan nar nas nca ncc nch ncn ncr ncs nha nhc nhh nhn nhr nhs nna nnc nnh nnn nns nra nrc nrn nrr nrs nsa nsc nsh nsn nsr nss ra- raa rac rah ran rar ras rca rcc rch rcn rcr rcs rh- rha rhc rhh rhn rhr rhs rna rnc rnh rnn rnr rns rra rrc rrh rrn rrr rrs rsa rsc rsh rsn rsr rss saa sac sah san sar sas sca scc sch scn scr scs sh- sha shc shh shn shr shs sna snc snn snr sns sr- sra src srh srn srr srs ss- ssa ssc ssh ssn ssr sss