Anti-palindrome strings

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You are given a string S containing only lowercase alphabets. You can swap two adjacent characters any number of times (including 0).

A string is called anti-palindrome if it is not a palindrome. If it is possible to make a string anti-palindrome, then find the lexicographically smallest anti-palindrome. Otherwise, print -1−1
Input format
  • The first line contains a single integer T denoting the number of test cases. The description of T test cases follows.
  • Each line contains a string S of lower case alphabets only.

Output format
For each test case, print the answer in a new line.
Constraints
1≤T≤100
2≤|S|≤2×105
S contains only lowercase alphabets.
SAMPLE INPUT
4
bpc
pp
deep
zyx
SAMPLE OUTPUT
bcp
-1
deep
xyz
Explanation
  • In the first test case, you can create "bcp" which is not a palindrome and it is a lexicographically-smallest string.
  • In the second test case, you cannot form any anti palindrome.

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