C22213331333133313112331323133313331333133313331333133313231333132322231211   >>    C2221333133313331311233132313331333133313331333133313331323133313232223121   <<    C22213331333133313112331323133313331333133313331333133313231333132322231213   >>      C22213331333133313112331323133313331333133313331333133313231333132322231212   >>