aaaa aaac aaad aaca aacc aacd aact aacu aada aadc aadt aadu aata aatc aatt ac-t acaa acac acad acat acca accc accd acct accu acda acdc acdt acta actc actt actu acu- acut adaa adac adad adat adcc adda addc addd addu adta adua at-t ataa atac atad atat atca atcc atdt atta attu atua atuc auaa auca auct audc aut- c-cd caaa caac caat cac- caca cacc cada cadc cadd cadu cat- cata catc catd catt catu cauc caut ccaa ccac ccad ccat ccca cccc cccu ccdc cctc cctt ccuc ccut cdaa cdac cdad cdda ctca ctta cuau cuca cucc cuda cut- cuta cutc cutt daad daau daca dact dada dadu data datt datu daud daut dcca dccc dcct dccu dctc dddd dtaa dtac dtcc duaa duad duat duca duct duda dudd dudu duta duut taa- taat taca tacc tact tada tata tatt tatu taua tauc taut tcad tcca tccc tccu tcdd tctc tdac tttt tuat tuca tucc tudu tuta tutt tutu uaca uata uatu uaua ucad ucat ucca ucdc ucdd ucua ucut udaa udad udau udca utac utau uttu uuta uuuu