C313212111133131211331333133313331333133311233133313221211111313231   >>    C31321211113313121133133313331333133313331123313331322121111131323   <<    C313212111133131211331333133313331333133311233133313221211111313233   >>      C313212111133131211331333133313331333133311233133313221211111313232   >>