cccc ccee ccoc ccrc ccre cec- cece ceco ceec ceor cer- cerc cere cero coce coco cor- corc core coro corr crcc crce crcr cre- crec cree creo croc croe croo cror eccc ecce ecco eco- ecrc ecrr eeee eeoc eerc eero eore ercc erce erec erer eroc eroe eroo errc erre erro o-eo occc oce ocee ocre ocro ocrr oec- oecc oeec oere oocr ooer oooo oore orce orco ore- orec oreo orer oro- oroe oror orro rccc recc rece recr rere rero rocc roce roco roer roor rorc rore roro rrrr