C22213331333133313112331323133313331333133313232221123132313223311211   >>    C2221333133313331311233132313331333133313331323222112313231322331121   <<    C22213331333133313112331323133313331333133313232221123132313223311213   >>      C22213331333133313112331323133313331333133313232221123132313223311212   >>