-er -ic a-a a-c a-i a-z aaa aac aae aag aai aar aaz ac- aca acc ace acg aci acr acz aea aec aee aeg aei aer aez ag- aga agc age agg agi agr agz ai- aia aic aie aig aii air aiz ar- ara arc are arg ari arr arz az- aza aze azg azi azz c-- caa cac cae cag cai car caz cca ccc cce ccg cci ccr ccz ce- cea cec cee ceg cei cer cez cga cgc cge cgg cgi cgr ci- cia cic cie cig cii cir cra crc cre crg cri crr crz cz- czc cze eaa eac eae eag eai ear eaz ec- eca ecc ece ecg eci ecr eea eec eee eeg eer ega egc ege egg egi egr eia eic eie eig eii eir era erc ere erg eri err erz eze ezr ezz gaa gac gae gag gai gar gaz gca gcc gce gcg gci gcr ge- gea gec gee geg gei ger gez gga ggc ggg ggi ggr ggz gia gic gie gig gii gir giz gra grc gre grg gri grr gza gzr ia- iaa iac iae iag iai iar iaz ica icc ice icg ici icr icz ie- iea iec iee ieg iei ier iga igc ige igg igi igr iia iic iie iii iir ir- ira irc ire irg iri irr iza ize izi izz ra- raa rac rae rag rai rar raz rca rcc rce rcg rci rcr re- rea rec ree reg rei rer rez rga rgc rge rgg rgi rgr ria ric rie rig rii rir riz rra rrc rrg rri rrr rza rze z-g zaa zac zag zai zar zaz zce zea zec zee zer zez zgg zgi zia zie zig zir ziz zzr zzz