C111123313121111121111331333133313331322121111331333133313331333121111332223231   >>    C11112331312111112111133133313331333132212111133133313331333133312111133222323   <<    C111123313121111121111331333133313331322121111331333133313331333121111332223233   >>      C111123313121111121111331333133313331322121111331333133313331333121111332223232   >>