-ic c-- ccc ccd cci ccp cct cdc cdd cdi cdp cdt ci- cic cid cii cip cit cpc cpd cpi cpp cpt ctc ctd cti ctp ctt dcc dcd dci dcp dct ddc ddd ddi ddp ddt di- dic did dii dip dit dpc dpd dpi dpp dpt dtc dtd dti dtp dtt i-d icc icd ici icp ict idc idd idi idp idt iic iid iii iip iit ipc ipd ipi ipp ipt itc itd iti itp itt p-p pcc pcd pci pcp pct pdc pdd pdi pdp pdt pic pid pii pip pit ppc ppd ppi ppp ppt pt- ptc ptd pti ptp ptt tcc tcd tci tcp tct tdc tdd tdi tdp tdt tic tid tii tip tit tpc tpd tpi tpp tpt ttc ttd tti ttp ttt