-er -ic a-a a-c a-i aaa aac aae aag aah aai aap aar ac- aca acc ace acg ach aci acp acr aea aec aee aeg aeh aei aep aer ag- aga agc age agg agh agi agp agr aha ahc ahe ahg ahh ahi ahp ahr ai- aia aic aie aig aih aii aip air ap- apa apc ape apg aph api app apr ar- ara arc are arg arh ari arp arr c-- caa cac cae cag cah cai cap car cca ccc cce ccg cch cci ccp ccr ce- cea cec cee ceg ceh cei cep cer cga cgc cge cgg cgh cgi cgp cgr ch- cha chc che chg chh chi chp chr ci- cia cic cie cig cih cii cip cir cpa cpc cpe cpg cph cpi cpp cpr cra crc cre crg crh cri crp crr eaa eac eae eag eah eai eap ear ec- eca ecc ece ecg ech eci ecr eea eec eee eeg eep eer ega egc ege egg egh egi egp egr eha ehc ehe ehg ehh ehi ehp ehr eia eic eie eig eii eip eir ep- epa epc epe epg eph epi epp epr era erc ere erg erh eri erp err g-p gaa gac gae gag gah gai gap gar gca gcc gce gcg gch gci gcp gcr ge- gea gec gee geg geh gei gep ger gga ggc ggg ggh ggi ggp ggr gha ghc ghe ghg ghh ghi ghp ghr gia gic gie gig gih gii gip gir gpa gpc gpe gpg gph gpi gpp gpr gra grc gre grg grh gri grp grr h-i haa hac hae hag hah hai hap har hca hcc hce hcg hch hci hcp hcr he- hea hec hee heg heh hei hep her hga hgc hge hgg hgh hgi hgp hgr hha hhc hhe hhg hhh hhi hhp hhr hia hic hie hig hih hii hip hir hpa hpc hpe hpg hph hpi hpp hpr hr- hra hrc hre hrg hrh hri hrp hrr ia- iaa iac iae iag iah iai iap iar ica icc ice icg ich ici icp icr ie- iea iec iee ieg iei iep ier iga igc ige igg igh igi igp igr iha ihc ihe ihg ihh ihi ihp ihr iia iic iie iih iii iip iir ipa ipc ipe ipg ipi ipp ipr ir- ira irc ire irg iri irp irr p-p paa pac pae pag pah pai pap par pca pcc pce pcg pch pci pcp pcr pea pec pee peg peh pei pep per pga pgc pge pgg pgh pgi pgp pgr pha phc phe phg phi php phr pia pic pie pig pih pii pip pir ppa ppc ppe ppg pph ppi ppp ppr pra prc pre prg prh pri prp prr ra- raa rac rae rag rah rai rap rar rca rcc rce rcg rch rci rcp rcr re- rea rec ree reg reh rei rep rer rga rgc rge rgg rgh rgi rgp rgr rh- rha rhc rhe rhg rhh rhi rhp rhr ria ric rie rig rih rii rip rir rpa rpc rpe rpg rph rpi rpp rpr rra rrc rrg rrh rri rrp rrr