AtCoder Beginner Contest 433
G
Substring Game
AtCoder
⌀ 2060
原题
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Problem Statement

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You are given a string $S$ consisting of lowercase English letters.

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Alice and Bob play the following game using this string.

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  • Prepare an empty string $T$.
  • Starting with Alice, they take turns playing.
  • On each turn, the player chooses one lowercase English letter and concatenates the chosen letter to the end of $T$. Here, the player cannot take an action such that $T$ after concatenation is not a substring of $S$.
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The player who cannot make a move first loses.

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Determine which player will win when both players play optimally.

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You are given $T$ test cases; solve each of them.

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Constraints

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  • $1\le T\le 10^5$
  • $T$ is an integer.
  • $S$ is a string consisting of lowercase English letters with length between $1$ and $2\times 10^5$, inclusive.
  • The sum of the lengths of $S$ over all test cases is at most $4\times 10^5$.
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Input

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The input is given from Standard Input in the following format:

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T
\text{case}_1
\text{case}_2
\vdots
\text{case}_T

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Each test case is given in the following format.

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S

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Output

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Output the answers for the test cases in order, separated by newlines.

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For each test case, output Alice if Alice wins when both players play optimally, and Bob if Bob wins.

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样例

Input #1
4
ooxo
abrakadabra
atcoderbeginnercontest
baabca
Output #1
Bob
Alice
Alice
Bob
Consider the first test case. For example, the game proceeds as follows. - Alice chooses `x`. $T=$ `x`. - Bob chooses `o`. $T=$ `xo`. - No matter which lowercase English letter Alice chooses and concatenates to the end of $T$, $T$ will not be a substring of $S$, so Alice cannot make a move. At this point, Bob wins. In this test case, Bob can win no matter how Alice plays. Therefore, output `Bob`.
题目信息
题号
abc433_g
时间限制
3 s
内存限制
1024 MB

题面与样例版权归 AtCoder 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。