C313212111133131211331333133313331333133311233133313222322333231   >>    C31321211113313121133133313331333133313331123313331322232233323   <<    C313212111133131211331333133313331333133311233133313222322333233   >>      C313212111133131211331333133313331333133311233133313222322333232   >>