c-- ccc ccd cce ccl ccu ccz cdc cdd cde cdl cdu cdz ce- cec ced cee cel ceu cez cl- clc cld cle cll clu clz cuc cud cue cul cuu cuz cz- czc czd cze dcc dcd dce dcl dcu ddc ddd dde ddl ddu ddz de- dec ded dee del deu dez dl- dlc dld dle dll dlu duc dud due dul duz dzd dze dzu ec- ecc ecd ece ecl ecu ed- edc edd ede edl edu eec eed eee eel elc eld ele ell elu elz eu- euc eud eue eul eze ezz lcc lcd lce lcl lcu ldc ldd lde ldl ldu lec led lee lel leu lez llc lld lle lll llu llz luc lud lue lul luu luz lzu ucc ucd uce ucl ucu udc udd ude udl udu uec ued uee uel ulc uld ule ull ulu uuc uue uuu uzu zce zcl zec zed zee zel zez zuc zud zul zuz zzz