C31231211111133131211113313331323133313331312121111332233131133132322131   >>    C3123121111113313121111331333132313331333131212111133223313113313232213   <<    C31231211111133131211113313331323133313331312121111332233131133132322133   >>      C31231211111133131211113313331323133313331312121111332233131133132322132   >>