-ic a-a a-c a-i aaa aac aad aai aap aas ac- aca acc acd aci acp acs ad- ada adc add adi adp ads ai- aia aic aid aii aip ais ap- apa apc apd api app aps as- asa asc asd asi asp ass c-- caa cac cad cai cap cas cca ccc ccd cci ccp ccs cda cdc cdd cdi cdp cds ci- cia cic cid cii cip cis cpa cpc cpd cpi cpp cps csa csc csd csi csp css daa dac dad dai dap das dca dcc dcd dci dcp dcs dda ddc ddd ddi ddp dds di- dia dic did dii dip dis dpa dpc dpd dpi dpp dps dsa dsc dsd dsi dsp dss i-d ia- iaa iac iad iai iap ias ica icc icd ici icp ics ida idc idd idi idp ids iia iic iid iii iip iis ipa ipc ipd ipi ipp ips is- isa isc isd isi isp iss p-p paa pac pad pai pap pas pca pcc pcd pci pcp pcs pda pdc pdd pdi pdp pds pia pic pid pii pip pis ppa ppc ppd ppi ppp pps ps- psa psc psd psi psp pss saa sac sad sai sap sas sca scc scd sci scp scs sda sdc sdd sdi sdp sds sia sic sid sii sip sis spa spc spd spi spp sps ss- ssa ssc ssd ssi ssp sss