-ic a-a a-c a-i aaa aac aad aae aai aap ac- aca acc acd ace aci acp ad- ada adc add ade adi adp aea aec aed aee aei aep ai- aia aic aid aie aii aip ap- apa apc apd ape api app c-- caa cac cad cae cai cap cca ccc ccd cce cci ccp cda cdc cdd cde cdi cdp ce- cea cec ced cee cei cep ci- cia cic cid cie cii cip cpa cpc cpd cpe cpi cpp daa dac dad dae dai dap dca dcc dcd dce dci dcp dda ddc ddd dde ddi ddp de- dea dec ded dee dei dep di- dia dic did die dii dip dpa dpc dpd dpe dpi dpp eaa eac ead eae eai eap ec- eca ecc ecd ece eci ed- eda edc edd ede edi edp eea eec eed eee eep eia eic eid eie eii eip ep- epa epc epd epe epi epp i-d ia- iaa iac iad iae iai iap ica icc icd ice ici icp ida idc idd ide idi idp ie- iea iec ied iee iei iep iia iic iid iie iii iip ipa ipc ipd ipe ipi ipp p-p paa pac pad pae pai pap pca pcc pcd pce pci pcp pda pdc pdd pde pdi pdp pea pec ped pee pei pep pia pic pid pie pii pip ppa ppc ppd ppe ppi ppp