Next higher palindromic number using the same set of digits
Submissions: 713   Accuracy:

18.11%

  Difficulty: Medium   Marks: 4

Given a palindromic number N in the form of string. The task is to find the smallest palindromic number greater than N using the same set of digits as in N.

Input:
The first line of input contains an integer T denoting the number of test cases. Then T test cases follow.
Each test case contains a number N as input.

Output:
For each test case, print the next higher palindromic number possible.
If no such number can be formed then print "-1".

Constraints:
1<=T<=100
1<=|Number length |<=104

Example:
Input:
2

35453
33

Output:
53435
-1

** For More Input/Output Examples Use 'Expected Output' option **

Contributor: Arun Tyagi
Author: arun03


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