题库练习 Letter Picking
← 上一题 下一题 →

A15282 | Letter Picking

时间限制1s
内存限制256MB
通过 / 提交0/0

题目描述

Alice and Bob are playing a game. Initially, they are given a non-empty string $s$ , consisting of lowercase Latin letters. The length of the string is even. Each player also has a string of their own, initially empty.

Alice starts, then they alternate moves. In one move, a player takes either the first or the last letter of the string $s$ , removes it from $s$ and prepends (adds to the beginning) it to their own string.

The game ends when the string $s$ becomes empty. The winner is the player with a lexicographically smaller string. If the players' strings are equal, then it's a draw.

A string $a$ is lexicographically smaller than a string $b$ if there exists such position $i$ that $a_j = b_j$ for all $j < i$ and $a_i < b_i$ .

What is the result of the game if both players play optimally (e. g. both players try to win; if they can't, then try to draw)?

输入格式

The first line contains a single integer $t$ ( $1 \le t \le 1000$ ) — the number of testcases.

Each testcase consists of a single line — a non-empty string $s$ , consisting of lowercase Latin letters. The length of the string $s$ is even.

The total length of the strings over all testcases doesn't exceed $2000$ .

输出格式

For each testcase, print the result of the game if both players play optimally. If Alice wins, print "Alice". If Bob wins, print "Bob". If it's a draw, print "Draw".

输入输出样例

输入 #1
2
forces
abba
输出 #1
Alice
Draw
C++ 编辑器
输入
输出