C312312111133131212111133133313231333132322121111331311331323132332133313221231   >>    C31231211113313121211113313331323133313232212111133131133132313233213331322123   <<    C312312111133131212111133133313231333132322121111331311331323132332133313221233   >>      C312312111133131212111133133313231333132322121111331311331323132332133313221232   >>