c-- ccc ccn ccs cct ccu cn- cnc cnn cns cnt cnu csc csn css cst csu ctc ctn cts ctt ctu cuc cun cus cut cuu ncc ncn ncs nct ncu nnc nnn nns nnt nnu nsc nsn nss nst nsu ntc ntn nts ntt ntu nuc nun nus nut nuu scc scn scs sct scu snc snn sns snt snu ss- ssc ssn sss sst ssu stc stn sts stt stu suc sun sus sut suu tcc tcn tcs tct tcu tnc tnn tns tnt tsc tsn tss tst tsu ttc ttn tts ttt ttu tuc tun tus tut tuu ucc ucn ucs uct ucu un- unc unn uns unt unu usc usn uss ust usu utc utn uts utt utu uuc uun uus uut uuu