C1111133313331333121121133133313331333132313331333133313331311112311   >>    C111113331333133312112113313331333133313231333133313331333131111231   <<    C1111133313331333121121133133313331333132313331333133313331311112313   >>      C1111133313331333121121133133313331333132313331333133313331311112312   >>