A string $w$ consisting of lowercase Latin letters is called suspicious if and only if all of the following conditions hold:
- The letter
$\mathtt{s}$appears at least twice, and - For every occurrence of the letter
$\mathtt{u}$, the two nearest occurrences of$\mathtt{s}$are the same number of characters away from the$\mathtt{u}$.
After watching you finish a string task, your friend Aka has gifted you a string $r$ consisting only of letters $\mathtt{s}$ and $\mathtt{u}$. You can perform the following operation on $r$:
- Choose an index
$i$($1\le i\le |r|$), and set$r_i$to$\mathtt{s}$.
Determine the minimum number of operations needed to make $r$ suspicious. It can be shown that, under the given constraints, it is always possible to transform $r$ into a suspicious string.
Input
Each test contains multiple test cases. The first line contains the number of test cases $t$ ($1 \le t \le 10^4$). The description of the test cases follows.
The only line of each test case contains the string $r$ ($3\le |r|\le 2\cdot 10^5$). It is guaranteed that $r_i = \mathtt{s}$ or $\mathtt{u}$.
It is guaranteed that the sum of $|r|$ over all test cases does not exceed $2\cdot 10 ^ 5$.
Output
For each test case, output a single integer — the minimum number of operations needed to make $r$ suspicious.
Note
In the first test case, the string $\mathtt{sus}$ is already suspicious because $\mathtt{s}$ appears twice in the string and the two nearest $\mathtt{s}$ to the only $\mathtt{u}$ are both $1$ character away: $\color{red}{\mathtt{s}}\underline{\mathtt{u}}\color{red}{\mathtt{s}}$.
In the second test case, it is optimal to perform the operation on indices $1$, $3$, and $4$. After that, the string $s$ becomes $\texttt{suss}$. The string $\mathtt{suss}$ is suspicious because $\mathtt{s}$ appears $3$ times in the string and the two nearest $\mathtt{s}$ to the only $\mathtt{u}$ are both $1$ character away: $\color{red}{\mathtt{s}}\underline{\mathtt{u}}\color{red}{\mathtt{s}}\mathtt{s}$.
In the third test case, the condition on $\mathtt{u}$ is vacuously true because there is no $\mathtt{u}$ in the string $\mathtt{sssss}$. Thus, the given string is already suspicious.
In the sixth test case, the initial string $\mathtt{usssssss}$ is not suspicious because the two nearest $\mathtt{s}$ to the only $\mathtt{u}$ are one and two characters away, respectively: $\underline{\mathtt{u}}\color{red}{\mathtt{ss}}\mathtt{sssss}$.
样例
9
sus
uuuu
sssss
uusuuu
suuuuuu
usssssss
sssuuusss
susuusuuus
uuuuuuuuuuu
0
3
0
3
3
1
1
2
6
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