C111123313121111121111331333133313331333131121133133313331333132213233231   >>    C11112331312111112111133133313331333133313112113313331333133313221323323   <<    C111123313121111121111331333133313331333131121133133313331333132213233233   >>      C111123313121111121111331333133313331333131121133133313331333132213233232   >>