C312312111111331312111133133313121111133313113313331333132213331322233221   >>    C31231211111133131211113313331312111113331311331333133313221333132223322   <<    C312312111111331312111133133313121111133313113313331333132213331322233223   >>      C312312111111331312111133133313121111133313113313331333132213331322233222   >>