C3123223313331322121111331333133313331333121211113313222213112111   >>    C312322331333132212111133133313331333133312121111331322221311211   <<    C3123223313331322121111331333133313331333121211113313222213112113   >>      C3123223313331322121111331333133313331333121211113313222213112112   >>