a-a a-c aaa aac aae aag aah aak ac- aca acc ace acg ach ack aea aec aee aeg aeh aek ag- aga agc age agg agh agk aha ahc ahe ahg ahh ahk aka akc ake akg akh akk c-- caa cac cae cag cah cak cca ccc cce ccg cch cck ce- cea cec cee ceg ceh cek cga cgc cge cgg cgh ch- cha chc che chg chh chk cka ckc ckh eaa eac eae eag eah eak ec- eca ecc ece ecg ech eck eea eec eee eeg eek ega egc ege egg egh eha ehc ehe ehg ehh eka ekc eke ekg ekh gaa gac gae gag gah gak gca gcc gce gcg gch gck ge- gea gec gee geg geh gek gga ggc ggg ggh gha ghc ghe ghg ghh gka gkh haa hac hae hag hah hak hca hcc hce hcg hch hck he- hea hec hee heg heh hek hga hgc hge hgg hgh hgk hha hhc hhe hhg hhh hhk hka hkg hkh hkk ka- kaa kac kae kag kah kak kca kcc kce kcg kch kck ke- kea kec kee keg keh kek kga kgc kgh kha khe khh khk kkc kke kkh kkk