C31232233133313221211113313331333133313331212111133133321223231   >>    C3123223313331322121111331333133313331333121211113313332122323   <<    C31232233133313221211113313331333133313331212111133133321223233   >>      C31232233133313221211113313331333133313331212111133133321223232   >>