I love AAAB
Description
Let's call a string good if its length is at least $2$ and all of its characters are $\texttt{A}$ except for the last character which is $\texttt{B}$. The good strings are $\texttt{AB},\texttt{AAB},\texttt{AAAB},\ldots$. Note that $\texttt{B}$ is not a good string.
You are given an initially empty string $s_1$.
You can perform the following operation any number of times:
- Choose any position of $s_1$ and insert some good string in that position.
Given a string $s_2$, can we turn $s_1$ into $s_2$ after some number of operations?
Each test contains multiple test cases. The first line contains a single integer $t$ ($1 \leq t \leq 10^4$) — the number of test cases. The description of the test cases follows.
The first line of each test case contains a single string $s_2$ ($1 \leq |s_2| \leq 2 \cdot 10^5$).
It is guaranteed that $s_2$ consists of only the characters $\texttt{A}$ and $\texttt{B}$.
It is guaranteed that the sum of $|s_2|$ over all test cases does not exceed $2 \cdot 10^5$.
For each test case, print "YES" (without quotes) if we can turn $s_1$ into $s_2$ after some number of operations, and "NO" (without quotes) otherwise.
You can output "YES" and "NO" in any case (for example, strings "yEs", "yes" and "Yes" will be recognized as a positive response).
Input
Each test contains multiple test cases. The first line contains a single integer $t$ ($1 \leq t \leq 10^4$) — the number of test cases. The description of the test cases follows.
The first line of each test case contains a single string $s_2$ ($1 \leq |s_2| \leq 2 \cdot 10^5$).
It is guaranteed that $s_2$ consists of only the characters $\texttt{A}$ and $\texttt{B}$.
It is guaranteed that the sum of $|s_2|$ over all test cases does not exceed $2 \cdot 10^5$.
Output
For each test case, print "YES" (without quotes) if we can turn $s_1$ into $s_2$ after some number of operations, and "NO" (without quotes) otherwise.
You can output "YES" and "NO" in any case (for example, strings "yEs", "yes" and "Yes" will be recognized as a positive response).
Samples
4
AABAB
ABB
AAAAAAAAB
A
YES
NO
YES
NO
Note
In the first test case, we transform $s_1$ as such: $\varnothing \to \color{red}{\texttt{AAB}} \to \texttt{A}\color{red}{\texttt{AB}}\texttt{AB}$.
In the third test case, we transform $s_1$ as such: $\varnothing \to \color{red}{\texttt{AAAAAAAAB}}$.
In the second and fourth test case, it can be shown that it is impossible to turn $s_1$ into $s_2$.