-th a-a a-c a-t aaa aac aah aan aat ac- aca acc ach acn act aha ahc ahh ahn aht an- ana anc anh ann ant at- ata atc ath atn att c-- caa cac cah can cat cca ccc cch ccn cct ch- cha chc chh chn cht cn- cna cnc cnh cnn cnt cta ctc cth ctn ctt haa hac hah han hat hca hcc hch hcn hct hha hhc hhh hhn hht hna hnc hnh hnn hnt hta htc hth htn htt naa nac nah nan nat nca ncc nch ncn nct nha nhc nhh nhn nht nna nnc nnh nnn nnt nta ntc nth ntn ntt taa tac tah tan tat tca tcc tch tcn tct th- tha thc thh thn tht tna tnc tnh tnn tnt tta ttc tth ttn ttt