C31232233133313221211113313331333133313331212111133133312213232131   >>    C3123223313331322121111331333133313331333121211113313331221323213   <<    C31232233133313221211113313331333133313331212111133133312213232133   >>      C31232233133313221211113313331333133313331212111133133312213232132   >>