a-a a-c aaa aac aaf aah aan aar ac- aca acc acf ach acn acr af- afa afc aff afh afn afr aha ahc ahf ahh ahn ahr an- ana anc anf anh ann anr ar- ara arc arf arh arn arr c-- caa cac caf cah can car cca ccc ccf cch ccn ccr cfa cfc cff cfh cfn cfr ch- cha chc chf chh chn chr cn- cna cnc cnf cnh cnn cnr cra crc crf crh crn crr faa fac faf fah fan far fca fcc fcf fcn fcr ffa ffc fff ffh ffn ffr fha fhc fhf fhh fhn fhr fna fnc fnf fnh fnn fnr fra frc frf frh frn frr haa hac haf hah han har hca hcc hcf hch hcn hcr hfa hfc hff hfh hfn hfr hha hhc hhf hhh hhn hhr hna hnc hnf hnh hnn hr- hra hrc hrf hrh hrn hrr naa nac naf nah nan nar nca ncc ncf nch ncn ncr nfa nfc nff nfn nfr nha nhc nhf nhh nhn nhr nna nnc nnf nnh nnn nra nrc nrf nrn nrr ra- raa rac raf rah ran rar rca rcc rcf rch rcn rcr rfa rfc rff rfh rfn rfr rh- rha rhc rhf rhh rhn rhr rna rnc rnh rnn rnr rra rrc rrf rrh rrn rrr