题目描述
Alica and Bob are playing a game.
Initially they have a binary string $s$ consisting of only characters 0 and 1.
Alice and Bob make alternating moves: Alice makes the first move, Bob makes the second move, Alice makes the third one, and so on. During each move, the current player must choose two different adjacent characters of string $s$ and delete them. For example, if $s = 1011001$ then the following moves are possible:
- delete $s_1$ and $s_2$: $\textbf{10}11001 \rightarrow 11001$;
- delete $s_2$ and $s_3$: $1\textbf{01}1001 \rightarrow 11001$;
- delete $s_4$ and $s_5$: $101\textbf{10}01 \rightarrow 10101$;
- delete $s_6$ and $s_7$: $10110\textbf{01} \rightarrow 10110$.
If a player can't make any move, they lose. Both players play optimally. You have to determine if Alice can win.
Input
First line contains one integer $t$ ($1 \le t \le 1000$) — the number of test cases.
Only line of each test case contains one string $s$ ($1 \le |s| \le 100$), consisting of only characters 0 and 1.
Output
For each test case print answer in the single line.
If Alice can win print DA (YES in Russian) in any register. Otherwise print NET (NO in Russian) in any register.
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分
样例输入
样例输出
提示
In the first test case after Alice's move string $s$ become empty and Bob can not make any move.
In the second test case Alice can not make any move initially.
In the third test case after Alice's move string $s$ turn into $01$. Then, after Bob's move string $s$ become empty and Alice can not make any move.