-ic a-a a-c a-i aaa aac aad aai aao aap ac- aca acc acd aci aco acp ad- ada adc add adi ado adp ai- aia aic aid aii aio aip aoa aoc aod aoi aoo aop ap- apa apc apd api apo app c-- caa cac cad cai cao cap cca ccc ccd cci cco ccp cda cdc cdd cdi cdo cdp ci- cia cic cid cii cio cip co- coa coc cod coi coo cop cpa cpc cpd cpi cpo cpp daa dac dad dai dao dap dca dcc dcd dci dco dcp dda ddc ddd ddi ddo ddp di- dia dic did dii dio dip doa doc dod doi doo dop dpa dpc dpd dpi dpo dpp i-d ia- iaa iac iad iai iao iap ica icc icd ici ico icp ida idc idd idi ido idp iia iic iid iii iio iip io- ioa ioc iod ioi ioo iop ipa ipc ipd ipi ipo ipp o-i oaa oac oad oai oao oap oc- oca occ ocd oci oco ocp oda odc odd odi odo odp oia oic oid oii oio oip oo- ooa ooc ood ooi ooo oop op- opa opc opd opi opo opp p-p paa pac pad pai pao pap pca pcc pcd pci pco pcp pda pdc pdd pdi pdo pdp pia pic pid pii pio pip poa poc pod poi poo pop ppa ppc ppd ppi ppo ppp