C111123313121111121111331333133313331321123121133132313331333133322123311   >>    C11112331312111112111133133313331333132112312113313231333133313332212331   <<    C111123313121111121111331333133313331321123121133132313331333133322123313   >>      C111123313121111121111331333133313331321123121133132313331333133322123312   >>