C313212111133131211331333133313331333133311233133313311223323113231   >>    C31321211113313121133133313331333133313331123313331331122332311323   <<    C313212111133131211331333133313331333133311233133313311223323113233   >>      C313212111133131211331333133313331333133311233133313311223323113232   >>