C111113331333132322331333133313331333133313121111331333121111331333133112121111   >>    C11111333133313232233133313331333133313331312111133133312111133133313311212111   <<    C111113331333132322331333133313331333133313121111331333121111331333133112121113   >>      C111113331333132322331333133313331333133313121111331333121111331333133112121112   >>