C111123313121111121111331333133313331321123121111113313221121211   >>    C11112331312111112111133133313331333132112312111111331322112121   <<    C111123313121111121111331333133313331321123121111113313221121213   >>      C111123313121111121111331333133313331321123121111113313221121212   >>