Vasya has a string $s$ of length $n$. He decides to make the following modification to the string:
- Pick an integer
$k$, ($1 \leq k \leq n$). - For
$i$from$1$to$n-k+1$, reverse the substring$s[i:i+k-1]$of$s$. For example, if string$s$isqwerand$k = 2$, below is the series of transformations the string goes through: Hence, the resulting string after modifying$s$with$k = 2$iswerq.
qwer(original string)wqer(after reversing the first substring of length$2$)weqr(after reversing the second substring of length$2$)werq(after reversing the last substring of length$2$)
Vasya wants to choose a $k$ such that the string obtained after the above-mentioned modification is lexicographically smallest possible among all choices of $k$. Among all such $k$, he wants to choose the smallest one. Since he is busy attending Felicity 2020, he asks for your help.
A string $a$ is lexicographically smaller than a string $b$ if and only if one of the following holds:
$a$is a prefix of$b$, but$a \ne b$;- in the first position where
$a$and$b$differ, the string$a$has a letter that appears earlier in the alphabet than the corresponding letter in$b$.
Input
Each test contains multiple test cases.
The first line contains the number of test cases $t$ ($1 \le t \le 5000$). The description of the test cases follows.
The first line of each test case contains a single integer $n$ ($1 \le n \le 5000$) — the length of the string $s$.
The second line of each test case contains the string $s$ of $n$ lowercase latin letters.
It is guaranteed that the sum of $n$ over all test cases does not exceed $5000$.
Output
For each testcase output two lines:
In the first line output the lexicographically smallest string $s'$ achievable after the above-mentioned modification.
In the second line output the appropriate value of $k$ ($1 \leq k \leq n$) that you chose for performing the modification. If there are multiple values of $k$ that give the lexicographically smallest string, output the smallest value of $k$ among them.
Note
In the first testcase of the first sample, the string modification results for the sample abab are as follows :
- for
$k = 1$:abab - for
$k = 2$:baba - for
$k = 3$:abab - for
$k = 4$:babaThe lexicographically smallest string achievable through modification isababfor$k = 1$and$3$. Smallest value of$k$needed to achieve is hence$1$.
样例
6
4
abab
6
qwerty
5
aaaaa
6
alaska
9
lfpbavjsm
1
p
abab
1
ertyqw
3
aaaaa
1
aksala
6
avjsmbpfl
5
p
1
题面与样例版权归 Codeforces 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。