-ic a-a a-c a-i aaa aac aad aae aag aai aao aap ac- aca acc acd ace acg aci aco acp ad- ada adc add ade adg adi ado adp aea aec aed aee aeg aei aeo aep ag- aga agc agd age agg agi ago agp ai- aia aic aid aie aig aii aio aip aoa aoc aod aoe aog aoi aoo aop ap- apa apc apd ape apg api apo app c-- caa cac cad cae cag cai cao cap cca ccc ccd cce ccg cci cco ccp cda cdc cdd cde cdg cdi cdo cdp ce- cea cec ced cee ceg cei ceo cep cga cgc cgd cge cgg cgi cgo cgp ci- cia cic cid cie cig cii cio cip co- coa coc cod coe cog coi coo cop cpa cpc cpd cpe cpg cpi cpo cpp daa dac dad dae dag dai dao dap dca dcc dcd dce dcg dci dco dcp dda ddc ddd dde ddg ddi ddo ddp de- dea dec ded dee deg dei deo dep dga dgc dgd dge dgg dgi dgp di- dia dic did die dig dii dio dip doa doc dod doe dog doi doo dop dpa dpc dpd dpe dpg dpi dpo dpp eaa eac ead eae eag eai eao eap ec- eca ecc ecd ece ecg eci eco ed- eda edc edd ede edg edi edo edp eea eec eed eee eeg eeo eep ega egc egd ege egg egi ego egp eia eic eid eie eig eii eio eip eo- eoa eoc eod eoe eog eoi eoo eop ep- epa epc epd epe epg epi epo epp g-d g-p gaa gac gad gae gag gai gao gap gca gcc gcd gce gcg gci gco gcp gda gdc gdd gde gdi gdo gdp ge- gea gec ged gee geg gei geo gep gga ggc ggd ggg ggi ggo ggp gia gic gid gie gig gii gio gip goa goc god goe gog goi goo gop gpa gpc gpd gpe gpg gpi gpo gpp i-d ia- iaa iac iad iae iag iai iao iap ica icc icd ice icg ici ico icp ida idc idd ide idg idi ido idp ie- iea iec ied iee ieg iei iep iga igc igd ige igg igi igo igp iia iic iid iie iii iio iip io- ioa ioc iod ioe iog ioi ioo iop ipa ipc ipd ipe ipg ipi ipo ipp o-i oaa oac oad oae oag oai oao oap oc- oca occ ocd ocg oci oco ocp oda odc odd ode odg odi odo odp oea oec oed oee oeg oei oeo oep oga ogc ogd oge ogg ogi ogo ogp oia oic oid oie oii oio oip oo- ooa ooc ood oog ooi ooo oop op- opa opc opd ope opg opi opo opp p-p paa pac pad pae pag pai pao pap pca pcc pcd pce pcg pci pco pcp pda pdc pdd pde pdg pdi pdo pdp pea pec ped pee peg pei peo pep pga pgc pgd pge pgg pgi pgo pgp pia pic pid pie pig pii pio pip poa poc pod poe pog poi poo pop ppa ppc ppd ppe ppg ppi ppo ppp