c-- ccc ccf ccn ccp cct cfc cff cfn cfp cft cn- cnc cnf cnn cnp cnt cpc cpf cpn cpp cpt ctc ctf ctn ctp ctt fcc fcf fcn fcp fct ffc fff ffn ffp fft fnc fnf fnn fnp fnt fpc fpn fpp fpt ftc ftf ftn ftp ftt ncc ncf ncn ncp nct nfc nff nfn nfp nft nnc nnf nnn nnp nnt npc npf npn npp npt ntc ntf ntn ntp ntt p-p pcc pcf pcn pcp pct pfc pff pfn pfp pft pn- pnc pnf pnn pnp pnt ppc ppf ppn ppp ppt pt- ptc ptf ptn ptp ptt tcc tcf tcn tcp tct tfc tff tfn tfp tft tnc tnf tnn tnp tnt tpc tpf tpn tpp tpt ttc ttf ttn ttp ttt