-ic a-a a-c a-i aaa aac aae aag aai aak ac- aca acc ace acg aci ack aea aec aee aeg aei aek ag- aga agc age agg agi agk ai- aia aic aie aig aii aik aka akc ake akg aki akk c-- caa cac cae cag cai cak cca ccc cce ccg cci cck ce- cea cec cee ceg cei cek cga cgc cge cgg cgi ci- cia cic cie cig cii cik cka ckc cki eaa eac eae eag eai eak ec- eca ecc ece ecg eci eck eea eec eee eeg eek ega egc ege egg egi eia eic eie eig eii eik eka ekc eke ekg eki gaa gac gae gag gai gak gca gcc gce gcg gci gck ge- gea gec gee geg gei gek gga ggc ggg ggi gia gic gie gig gii gik gka ia- iaa iac iae iag iai ica icc ice icg ici ick ie- iea iec iee ieg iei iek iga igc ige igg igi igk iia iic iie iii ika ikc ike iki ikk ka- kaa kac kae kag kai kak kca kcc kce kcg kci kck ke- kea kec kee keg kei kek kga kgc kgi kia kic kie kig kii kik kkc kke kki kkk