C313212111133131211331333133313331333133311233133313121133223323231   >>    C31321211113313121133133313331333133313331123313331312113322332323   <<    C313212111133131211331333133313331333133311233133313121133223323233   >>      C313212111133131211331333133313331333133311233133313121133223323232   >>