C31232233133313221211113313331333132313331322121111331311222132313231   >>    C3123223313331322121111331333133313231333132212111133131122213231323   <<    C31232233133313221211113313331333132313331322121111331311222132313233   >>      C31232233133313221211113313331333132313331322121111331311222132313232   >>