cccc cccs ccee ccrc ccre ccrs ccss cec- cece cecs ceec cees cer- cerc cere cers cery cesc cese cesr cess ceys ceze cezy crcc crce crcr crcz cre- crec cree cres crss cry- crys cryz cscc csce cscr cscs csec csee cser csrc csrs csse cssr csys cyc- cycc cycs cyre cyrs cyse cyy- cyyc czyz eccc ecce eces ecrc ecrr ecsc ecse ecss eecs eeee eees eerc eers eery eese eesy eeze ercc erce erec erer eres erez errc erre errs erse eryc erye esce escr escs esee eser eses esse essy eyec eyer eyes eyey eyez eyre eyry eyse eyyr ezer rccc rccs rcsc rcss rcyc recc rece recr recs recy recz rees rere rers rery rese ress reye reys reze rrrr rscc rscs rscy rsee rsre ryes rysy ryze sccc scce sccs sccy scec scee scer scey scr- scrc scre scrs scry scsc scsr scye se-c se-e se-s se-y se-z sec- secc sece secr secs secy seec seer sees seey seez serc sere serr sers sery sesc sese sess seye seys srcc srec sres sscc ssce sscs ssec ssee sses ssrc ssrs sssc ssss syce sycr syer syes syre syrs syry syse syss szss yccc ycee yeer yees yere yerr yers yery yess yeye yeyr ysee yser yses ysse yyyy zees zeze zrce zrze zsss zzzs zzzz