c-- ccc cce cck ccn ccs cct ccu ce- cec cee cek cen ces cet ceu ckc cks ckt cn- cnc cne cnn cns cnt cnu csc cse csk csn css cst csu ctc cte ctk ctn cts ctt ctu cuc cue cuk cun cus cut cuu ec- ecc ece eck ecn ecs ect ecu eec eee eek een ees eet ekc eke eks ekt eku en- enc ene enk enn ens ent enu es- esc ese esk esn ess est esu etc ete etk etn ets ett etu eu- euc eue eun eus eut k-t kcc kce kck kcn kcs kct kcu ke- kec kee kek ken kes ket kkc kke kkk kkn kks kkt kku kn- knc kne knk knn knt knu ksc kse ksk ksn kss kst ksu ktc kte ktk ktn kts ktt ktu kuc kue kuk kun kus kut kuu ncc nce nck ncn ncs nct ncu ne- nec nee nek nen nes net neu nkc nke nkk nkn nks nkt nku nnc nne nnk nnn nns nnt nnu nsc nse nsk nsn nss nst nsu ntc nte ntk ntn nts ntt ntu nuc nue nuk nun nus nut nuu scc sce sck scn scs sct scu se- sec see sek sen ses set seu sk- skc ske skk sks skt sku snc sne snk snn sns snt snu ss- ssc sse ssk ssn sss sst ssu stc ste stk stn sts stt stu suc sue suk sun sus sut suu tcc tce tck tcn tcs tct tcu te- tec tee tek ten tes tet teu tkc tke tkk tks tkt tnc tne tnk tnn tns tnt tsc tse tsk tsn tss tst tsu ttc tte ttk ttn tts ttt ttu tuc tue tuk tun tus tut tuu ucc uce uck ucn ucs uct ucu uec uee uen ues uet ukc uke ukk ukn uku un- unc une unk unn uns unt unu usc use usk usn uss ust usu utc ute utk utn uts utt utu uuc uue uun uus uut uuu