c-- ccc ccd ccf ccn ccp cct cdc cdd cdf cdn cdp cdt cfc cfd cff cfn cfp cft cn- cnc cnd cnf cnn cnp cnt cpc cpd cpf cpn cpp cpt ctc ctd ctf ctn ctp ctt dcc dcd dcf dcn dcp dct ddc ddd ddf ddn ddp ddt dfc dfd dff dfn dfp dft dnc dnd dnf dnn dnp dnt dpc dpd dpf dpn dpp dpt dtc dtd dtf dtn dtp dtt fcc fcd fcf fcn fcp fct fdc fdd fdf fdn fdp fdt ffc ffd fff ffn ffp fft fnc fnd fnf fnn fnp fnt fpc fpd fpn fpp fpt ftc ftd ftf ftn ftp ftt ncc ncd ncf ncn ncp nct ndc ndd ndf ndn ndp ndt nfc nfd nff nfn nfp nft nnc nnf nnn nnp nnt npc npd npf npn npp npt ntc ntd ntf ntn ntp ntt p-p pcc pcd pcf pcn pcp pct pdc pdd pdf pdn pdp pdt pfc pfd pff pfn pfp pft pn- pnc pnd pnf pnn pnp pnt ppc ppd ppf ppn ppp ppt pt- ptc ptd ptf ptn ptp ptt tcc tcd tcf tcn tcp tct tdc tdd tdf tdn tdp tdt tfc tfd tff tfn tfp tft tnc tnd tnf tnn tnp tnt tpc tpd tpf tpn tpp tpt ttc ttd ttf ttn ttp ttt