Permutation and Palindrome

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You are given a string s with length n. You should find a permutation P of numbers 1 through n such that if you apply this permutation on the string s, you will get a palindromic string.
The result of applying a permutation P on the string s is a string t with length n such that for each i (1 ≤ i ≤ n), the ith character of t is given as as t[i] = s[P_{i}].
Input
 The first line of the input contains a single integer T denoting the number of test cases. The description of T test cases follows.
 The first and only line of each test case contains the string s.
Output
For each test case, print a single line. If it is impossible to find a valid permutation P, this line should contain a single integer 1. Otherwise, it should contain n spaceseparated integers P_{1}, P_{2}, ..., P_{n}.
If there are multiple valid permutations, you may print any one.
Constraints
 1 ≤ n ≤ 10^{5}
 s will consist only of lowercase English letters (i.e. characters 'a' through 'z')
Subtasks
Subtask #1 (20 points): 1 ≤ T, n ≤ 10
Subtask #2 (20 points): 1 ≤ T, n ≤ 100
Subtask #3 (60 points): 1 ≤ T ≤ 10
Example
Input 4 aa baa abc abab Output 1 2 2 1 3 1 1 2 4 3
Explanation
Example case 1: The string t obtained using the identity permutation will have t[1] = s[1] and t[2] = s[2]. That means t = "aa", which is a palindrome.
Example case 2: The characters of the string t obtained by applying the permutation 2, 1, 3 are t[1] = s[2], t[2] = s[1] and t[3] = s[3]. Therefore, t = "aba", which is a palindrome.
Example case 3: There is no way to find a permutation P such that we can obtain a palindrome from s using it.
Example case 4: Applying the permutation 1, 2, 4, 3 on s results in t = "abba", which is a palindrome. Another permutation that you may apply is 2, 1, 3, 4; this results in t = "baab", which is also a palindrome.
Author:  admin2 
Editorial  https://discuss.codechef.com/problems/PERMPAL 
Tags  admin2, constructive, feb18, palindrome, simple, string 
Date Added:  2022018 
Time Limit:  2 sec 
Source Limit:  50000 Bytes 
Languages:  C, CPP14, JAVA, PYTH, PYTH 3.6, PYPY, CS2, PAS fpc, PAS gpc, RUBY, PHP, GO, NODEJS, HASK, rust, SCALA, swift, D, PERL, FORT, WSPC, ADA, CAML, ICK, BF, ASM, CLPS, PRLG, ICON, SCM qobi, PIKE, ST, NICE, LUA, BASH, NEM, LISP sbcl, LISP clisp, SCM guile, JS, ERL, TCL, kotlin, PERL6, TEXT, SCM chicken, PYP3, CLOJ, COB, FS 
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