PALIN  The Next Palindrome
A positive integer is called a palindrome if its representation in the decimal system is the same when read from left to right and from right to left. For a given positive integer K of not more than 1000000 digits, write the value of the smallest palindrome larger than K to output. Numbers are always displayed without leading zeros.
Input
The first line contains integer t, the number of test cases. Integers K are given in the next t lines.
Output
For each K, output the smallest palindrome larger than K.
Example
Input: 2 808 2133 Output: 818 2222
Warning: large Input/Output data, be careful with certain languages
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Ilya:
20140115 15:17:31
How large can the number of inputs (t) be? 

Hermano:
20140115 15:17:31
I didn't read the problem carrefully. I thought it'd be 1 000 000 the max k value. But not... k can have almos 10^1000000 digits.


Irving AJ Rivas:
20140115 15:17:31
Adhityaa: there are faster solutions. Yours works, but is pretty slow. Keep working on it. Last edit: 20111027 15:26:15 

Sotirios Nikoloutsopoulos:
20140115 15:17:31
I got AC on this problem , even if my code failed at some test cases at even numbers ( now my code is corrected :) ).


hendrik:
20140115 15:17:31
@manish: Write a brute force function and calc all results from 0..10000 or so. Then compare that against your algo you need for that task. I got AC at the first shot with that approach. 

genesect:
20140115 15:17:31
@Hadyan: status codes explained here: http://www.spoj.pl/forum/viewtopic.php?f=6&t=55


Ricky Suryadharma:
20140115 15:17:31
Not wondering again... :D


Ricky Suryadharma:
20140115 15:17:31
@hadi:


An Yujie:
20140115 15:17:31
Coders, attention. SIGSEGV means your array is not big enough. I got SIGSEGV by x[100000], but when I changed it to x[1000000], I got AC. It means that the biggest number may have 1000000 digits... Last edit: 20100702 13:12:06 

Jargon:
20140115 15:17:31
It's up to 1 million digits  try reading the comments below yours to see if the question has been answered before.

Added by:  adrian 
Date:  20040501 
Time limit:  2s9s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: NODEJS PERL6 