C31231211111133131211113313331333133313332313232233131133132322131   >>    C3123121111113313121111331333133313331333231323223313113313232213   <<    C31231211111133131211113313331333133313332313232233131133132322133   >>      C31231211111133131211113313331333133313332313232233131133132322132   >>