c-- ccc cce cck ccn cco ccp ccs cct ce- cec cee cek cen ceo cep ces cet ckc cko cks ckt cn- cnc cne cnn cno cnp cns cnt co- coc coe cok con coo cop cos cot cpc cpe cpk cpn cpo cpp cps cpt csc cse csk csn cso csp css cst ctc cte ctk ctn cto ctp cts ctt ec- ecc ece eck ecn eco ecs ect eec eee eek een eeo eep ees eet ekc eke eko ekp eks ekt en- enc ene enk enn eno enp ens ent eo- eoc eoe eok eon eoo eop eos eot ep- epc epe epn epo epp eps ept es- esc ese esk esn eso esp ess est etc ete etk etn eto etp ets ett k-t kcc kce kck kcn kcp kcs kct ke- kec kee kek ken keo kep kes ket kkc kke kkk kkn kkp kks kkt kn- knc kne knk knn kno knp knt koc koe kok kon koo kop kos kot kpc kpe kpk kpn kpo kpp kps kpt ksc kse ksk ksn kso ksp kss kst ktc kte ktk ktn kto ktp kts ktt ncc nce nck ncn nco ncp ncs nct ne- nec nee nek nen neo nep nes net nkc nke nkk nkn nko nkp nks nkt nnc nne nnk nnn nno nnp nns nnt no- noc noe nok non noo nop nos not npc npe npn npo npp nps npt nsc nse nsk nsn nso nsp nss nst ntc nte ntk ntn nto ntp nts ntt oc- occ ock ocn oco ocp ocs oct oec oee oen oeo oep oes oet okc oke okk oko okp oks on- onc one onk onn ono onp ons ont oo- ooc ook oon ooo oop oos oot op- opc ope opk opn opo opp ops opt os- osc ose osk osn oso osp oss ost ot- otc ote otk otn oto otp ots ott p-p pcc pce pck pcn pco pcp pcs pct pec pee pek pen peo pep pes pet pkc pke pkn pko pkp pks pkt pn- pnc pne pnk pnn pno pnp pns pnt poc poe pok pon poo pop pos pot ppc ppe ppk ppn ppo ppp pps ppt ps- psc pse psk psn pso psp pss pst pt- ptc pte ptk ptn pto ptp pts ptt scc sce sck scn sco scp scs sct se- sec see sek sen seo sep ses set sk- skc ske skk sko skp sks skt snc sne snk snn sno snp sns snt soc soe sok son soo sop sos sot spc spe spk spn spo spp sps spt ss- ssc sse ssk ssn sso ssp sss sst stc ste stk stn sto stp sts stt tcc tce tck tcn tco tcp tcs tct te- tec tee tek ten teo tep tes tet tkc tke tkk tko tkp tks tkt tnc tne tnk tnn tno tnp tns tnt to- toc toe tok ton too top tos tot tpc tpe tpk tpn tpo tpp tps tpt tsc tse tsk tsn tso tsp tss tst ttc tte ttk ttn tto ttp tts ttt