C312312111133113313231333133313331333133313331333131133132311111   >>    C31231211113311331323133313331333133313331333133313113313231111   <<    C312312111133113313231333133313331333133313331333131133132311113   >>      C312312111133113313231333133313331333133313331333131133132311112   >>