c-- ccc ccf cck ccn ccs cct ccu cfc cff cfk cfn cfs cft cfu ckc cks ckt cn- cnc cnf cnn cns cnt cnu csc csf csk csn css cst csu ctc ctf ctk ctn cts ctt ctu cuc cuf cuk cun cus cut cuu fcc fcf fck fcn fcs fct fcu ffc fff ffk ffn ffs fft ffu fkc fkf fkk fkt fnc fnf fnk fnn fns fnt fnu fsc fsf fsk fsn fss fst fsu ftc ftf ftk ftn fts ftt ftu fuf fuk fun fus fut fuu k-t kcc kck kcn kcs kct kcu kfc kff kfs kfu kkc kkk kkn kks kkt kku kn- knc knf knk knn knt knu ksc ksf ksk ksn kss kst ksu ktc ktf ktk ktn kts ktt ktu kuc kuk kun kus kut kuu ncc ncf nck ncn ncs nct ncu nfc nff nfk nfn nfs nft nfu nkc nkf nkk nkn nks nkt nku nnc nnf nnk nnn nns nnt nnu nsc nsf nsk nsn nss nst nsu ntc ntf ntk ntn nts ntt ntu nuc nuk nun nus nut nuu scc scf sck scn scs sct scu sfc sff sfk sfn sfs sft sfu sk- skc skf skk sks skt sku snc snf snk snn sns snt snu ss- ssc ssf ssk ssn sss sst ssu stc stf stk stn sts stt stu suc suf suk sun sus sut suu tcc tcf tck tcn tcs tct tcu tfc tff tfk tfn tfs tft tfu tkc tkk tks tkt tnc tnf tnk tnn tns tnt tsc tsf tsk tsn tss tst tsu ttc ttf ttk ttn tts ttt ttu tuc tuf tuk tun tus tut tuu ucc ucf uck ucn ucs uct ucu ufc uff ufn ufs uft ufu ukc ukf ukk ukn uku un- unc unf unk unn uns unt unu usc usf usk usn uss ust usu utc utf utk utn uts utt utu uuc uun uus uut uuu