cccc cccl cccu ccee ccel cclc ccrc ccre ccrl ccuc cec- cece ceec ceel cel- celc cele cell cer- cerc cere cerl clec clee cler cleu clue crcc crce crcr cre- crec cree creu crue cucc cuce cuer culc cule cull cure curl curr e-cl eccc ecce eccl ecrc ecrl ecrr ecru eeee eele eerc elce elec elee eler elle ellu elue elul ercc erce erec erel erer erle erll errc erre eruc erur euer eule eur- eurc eure lccc lcce lcer lcrl le-u lece leel leer lele lell lelu lerc lere leuc leur llcc lleu lllc llll lrrc lrrr luce luer lule lull lulu lure rccc rcle recc rece recr recu reel rele rell rere reru reue reul reuu rlee rleu rrle rrrr ruce ruel ruer rule rull rurc rure ruru ucel ucrc uele uell ulcc ulee ulle ullr ulul ure- urle urre urur uulu uuuu