c-- ccc ccs cct ccz csc css cst csy csz ctc cts ctt cty ctz cyc cys cyt cz- czc czt scc scs sct ss- ssc sss sst ssz stc sts stt sty stz sy- syc sys syt tcc tcs tct tsc tss tst tsy ttc tts ttt tty tyc tys tyt tzs ycc ycs ycy ysc yss yst ysy ysz ytc yts ytt yyc yys yyt yyy yyz yzy zcs zst zsz zzs zzt zzy zzz

cccc cccs ccss ccst cctc cctt cscc cscs cstc csts csys ctsc ctss ctts cyc- cycc cycs cyst cyt- cyy- cyyc czts czyz sccc sccs scct sccy scsc scst sctc scts sscc sscs sssc ssss sstc ssts stcc stcs stss sttc stys syss syst sytt szss tccc tctc tcts tscc tsst tstc tsts tsys ttss tttt ttys tyss tyst tytt tyty tzzt yccc yctc yyyy zsss ztst zzzs zzzz

ccccc cstcc cyst- cysts cytyc scyt- sssss systs ttttt zzzzz

sttstc

sssssss

ccccccccccccccc