c-- ccc cce ccs cct ccu ce- cec cee ceq ces cet ceu cqc cqs cqt csc cse csq css cst csu ctc cte ctq cts ctt ctu cuc cue cuq cus cut cuu ec- ecc ece ecq ecs ect ecu eec eee ees eet eqe eqq eqs eqt equ es- esc ese esq ess est esu etc ete ets ett etu eu- euc eue eus eut qcc qcs qct qec qee qet qqq qqu qsc qst qtc qtq qts qu- que qus qut scc sce scs sct scu se- sec see seq ses set seu sqq sqs ss- ssc sse ssq sss sst ssu stc ste stq sts stt stu suc sue suq sus sut suu tcc tce tcs tct tcu te- tec tee teq tes tet teu tsc tse tsq tss tst tsu ttc tte tts ttt ttu tuc tue tus tut tuu ucc uce ucs uct ucu uec uee ues uet usc use uss ust usu utc ute uts utt utu uuc uue uus uut uuu