-er -ic a-a a-c a-i aaa aac aad aae aaf aai aap aar ac- aca acc acd ace acf aci acp acr ad- ada adc add ade adf adi adp adr aea aec aed aee aef aei aep aer af- afa afc afd afe aff afi afp afr ai- aia aic aid aie aif aii aip air ap- apa apc apd ape apf api app apr ar- ara arc ard are arf ari arp arr c-- caa cac cad cae caf cai cap car cca ccc ccd cce ccf cci ccp ccr cda cdc cdd cde cdf cdi cdp cdr ce- cea cec ced cee cef cei cep cer cfa cfc cfd cfe cff cfi cfp cfr ci- cia cic cid cie cif cii cip cir cpa cpc cpd cpe cpf cpi cpp cpr cra crc crd cre crf cri crp crr daa dac dad dae daf dai dap dar dca dcc dcd dce dcf dci dcp dcr dda ddc ddd dde ddf ddi ddp ddr de- dea dec ded dee def dei dep der dfa dfc dfd dfe dff dfi dfp dfr di- dia dic did die dif dii dip dir dpa dpc dpd dpe dpf dpi dpp dpr dra drc drd dre dri drp drr eaa eac ead eae eaf eai eap ear ec- eca ecc ecd ece ecf eci ecr ed- eda edc edd ede edf edi edp edr eea eec eed eee eef eep eer ef- efa efc efd efe eff efi efp efr eia eic eid eie eif eii eip eir ep- epa epc epd epe epf epi epp epr era erc erd ere erf eri erp err faa fac fad fae faf fai fap far fca fcc fcd fce fcf fci fcp fcr fda fdc fdd fde fdf fdi fdp fdr fea fec fed fee fef fei fep fer ffa ffc ffd ffe fff ffi ffp ffr fia fic fid fie fif fii fip fir fpa fpc fpd fpe fpi fpp fpr fra frc frd fre frf fri frp frr i-d i-f ia- iaa iac iad iae iaf iai iap iar ica icc icd ice icf ici icp icr ida idc idd ide idf idi idp idr ie- iea iec ied iee ief iei iep ier ifa ifc ifd ife iff ifi ifp ifr iia iic iid iie iif iii iip iir ipa ipc ipd ipe ipf ipi ipp ipr ir- ira irc ird ire irf iri irp irr p-p paa pac pad pae paf pai pap par pca pcc pcd pce pcf pci pcp pcr pda pdc pdd pde pdf pdi pdp pdr pea pec ped pee pef pei pep per pfa pfc pfd pfe pff pfi pfp pfr pia pic pid pie pif pii pip pir ppa ppc ppd ppe ppf ppi ppp ppr pra prc prd pre prf pri prp prr ra- raa rac rad rae raf rai rap rar rca rcc rcd rce rcf rci rcp rcr rda rdc rdd rde rdf rdi rdp rdr re- rea rec red ree ref rei rep rer rfa rfc rfd rfe rff rfi rfp rfr ria ric rid rie rif rii rip rir rpa rpc rpd rpe rpf rpi rpp rpr rra rrc rrd rrf rri rrp rrr