-ic a-a a-c a-i aaa aac aad aae aai aao aap ac- aca acc acd ace aci aco acp ad- ada adc add ade adi ado adp aea aec aed aee aei aeo aep ai- aia aic aid aie aii aio aip aoa aoc aod aoe aoi aoo aop ap- apa apc apd ape api apo app c-- caa cac cad cae cai cao cap cca ccc ccd cce cci cco ccp cda cdc cdd cde cdi cdo cdp ce- cea cec ced cee cei ceo cep ci- cia cic cid cie cii cio cip co- coa coc cod coe coi coo cop cpa cpc cpd cpe cpi cpo cpp daa dac dad dae dai dao dap dca dcc dcd dce dci dco dcp dda ddc ddd dde ddi ddo ddp de- dea dec ded dee dei deo dep di- dia dic did die dii dio dip doa doc dod doe doi doo dop dpa dpc dpd dpe dpi dpo dpp eaa eac ead eae eai eao eap ec- eca ecc ecd ece eci eco ed- eda edc edd ede edi edo edp eea eec eed eee eeo eep eia eic eid eie eii eio eip eo- eoa eoc eod eoe eoi eoo eop ep- epa epc epd epe epi epo epp i-d ia- iaa iac iad iae iai iao iap ica icc icd ice ici ico icp ida idc idd ide idi ido idp ie- iea iec ied iee iei iep iia iic iid iie iii iio iip io- ioa ioc iod ioe ioi ioo iop ipa ipc ipd ipe ipi ipo ipp o-i oaa oac oad oae oai oao oap oc- oca occ ocd oci oco ocp oda odc odd ode odi odo odp oea oec oed oee oei oeo oep oia oic oid oie oii oio oip oo- ooa ooc ood ooi ooo oop op- opa opc opd ope opi opo opp p-p paa pac pad pae pai pao pap pca pcc pcd pce pci pco pcp pda pdc pdd pde pdi pdo pdp pea pec ped pee pei peo pep pia pic pid pie pii pio pip poa poc pod poe poi poo pop ppa ppc ppd ppe ppi ppo ppp