C111123313121111121111331333133313331323221211113313233311232233231333131131211   >>    C11112331312111112111133133313331333132322121111331323331123223323133313113121   <<    C111123313121111121111331333133313331323221211113313233311232233231333131131213   >>      C111123313121111121111331333133313331323221211113313233311232233231333131131212   >>