C111123313121111121111331333133313331323231333133313121133132322121   >>    C11112331312111112111133133313331333132323133313331312113313232212   <<    C111123313121111121111331333133313331323231333133313121133132322123   >>      C111123313121111121111331333133313331323231333133313121133132322122   >>