-ic a-a a-c a-i aaa aac aae aaf aag aai aap ac- aca acc ace acf acg aci acp aea aec aee aef aeg aei aep af- afa afc afe aff afg afi afp ag- aga agc age agf agg agi agp ai- aia aic aie aif aig aii aip ap- apa apc ape apf apg api app c-- caa cac cae caf cag cai cap cca ccc cce ccf ccg cci ccp ce- cea cec cee cef ceg cei cep cfa cfc cfe cff cfg cfi cfp cga cgc cge cgg cgi cgp ci- cia cic cie cif cig cii cip cpa cpc cpe cpf cpg cpi cpp eaa eac eae eaf eag eai eap ec- eca ecc ece ecf ecg eci eea eec eee eef eeg eep ef- efa efc efe eff efg efi efp ega egc ege egf egg egi egp eia eic eie eif eig eii eip ep- epa epc epe epf epg epi epp faa fac fae faf fag fai fap fca fcc fce fcf fcg fci fcp fea fec fee fef feg fei fep ffa ffc ffe fff ffg ffi ffp fga fgc fge fgf fgg fgi fgp fia fic fie fif fig fii fip fpa fpc fpe fpg fpi fpp g-p gaa gac gae gaf gag gai gap gca gcc gce gcf gcg gci gcp ge- gea gec gee gef geg gei gep gfa gfc gfe gff gfi gfp gga ggc ggg ggi ggp gia gic gie gif gig gii gip gpa gpc gpe gpf gpg gpi gpp i-f ia- iaa iac iae iaf iag iai iap ica icc ice icf icg ici icp ie- iea iec iee ief ieg iei iep ifa ifc ife iff ifg ifi ifp iga igc ige igf igg igi igp iia iic iie iif iii iip ipa ipc ipe ipf ipg ipi ipp p-p paa pac pae paf pag pai pap pca pcc pce pcf pcg pci pcp pea pec pee pef peg pei pep pfa pfc pfe pff pfg pfi pfp pga pgc pge pgf pgg pgi pgp pia pic pie pif pig pii pip ppa ppc ppe ppf ppg ppi ppp