C313212111133131211331333133313331333133311233133313232223313231   >>    C31321211113313121133133313331333133313331123313331323222331323   <<    C313212111133131211331333133313331333133311233133313232223313233   >>      C313212111133131211331333133313331333133311233133313232223313232   >>