-ic a-a a-c a-i a-t aaa aac aad aai aap aas aat ac- aca acc acd aci acp acs act ad- ada adc add adi adp ads adt ai- aia aic aid aii aip ais ait ap- apa apc apd api app aps apt as- asa asc asd asi asp ass ast at- ata atc atd ati atp ats att c-- caa cac cad cai cap cas cat cca ccc ccd cci ccp ccs cct cda cdc cdd cdi cdp cds cdt ci- cia cic cid cii cip cis cit cpa cpc cpd cpi cpp cps cpt csa csc csd csi csp css cst cta ctc ctd cti ctp cts ctt daa dac dad dai dap das dat dca dcc dcd dci dcp dcs dct dda ddc ddd ddi ddp dds ddt di- dia dic did dii dip dis dit dpa dpc dpd dpi dpp dps dpt dsa dsc dsd dsi dsp dss dst dta dtc dtd dti dtp dts dtt i-d ia- iaa iac iad iai iap ias iat ica icc icd ici icp ics ict ida idc idd idi idp ids idt iia iic iid iii iip iis iit ipa ipc ipd ipi ipp ips ipt is- isa isc isd isi isp iss ist ita itc itd iti itp its itt p-p paa pac pad pai pap pas pat pca pcc pcd pci pcp pcs pct pda pdc pdd pdi pdp pds pdt pia pic pid pii pip pis pit ppa ppc ppd ppi ppp pps ppt ps- psa psc psd psi psp pss pst pt- pta ptc ptd pti ptp pts ptt saa sac sad sai sap sas sat sca scc scd sci scp scs sct sda sdc sdd sdi sdp sds sdt sia sic sid sii sip sis sit spa spc spd spi spp sps spt ss- ssa ssc ssd ssi ssp sss sst sta stc std sti stp sts stt taa tac tad tai tap tas tat tca tcc tcd tci tcp tcs tct tda tdc tdd tdi tdp tds tdt tia tic tid tii tip tis tit tpa tpc tpd tpi tpp tps tpt tsa tsc tsd tsi tsp tss tst tta ttc ttd tti ttp tts ttt