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


hide comments
Simran Saha: 2017-09-08 16:19:04

There is a serious mistake in the output description here. Judge accepts solution with answers printed with space instead of newline.
Finally AC

trigun_123: 2017-09-07 21:08:23

what to do if getting wrong answer.
bt its giving rt ans on linux

kamlesh_2209: 2017-09-01 06:58:25

thanks @milos94 ... your comment about printing answer with just a space and not endl helped me....

jaykay12: 2017-08-30 22:25:48

AC in 3rd Go. :) Nice Problem. Be Careful with Number 9. :p Actually a String problem not an integer.

prasanth292130: 2017-08-20 20:16:01

do we need to test for the negitive numbers???

aryandosaj: 2017-08-19 16:07:33

i m giving output in prescribed format and also getting the correct answer but unable to submit.is there any extreme case to be checked.

Sebastian Ceronik: 2017-08-16 09:50:18

Anyone else expiriencing problem with WA ? I mean I pass tests according to spojtoolkit. but get wrong answer :/
toolkit say that 001 supposed to be 010... what is up with this leading zeros that supposed to be ommited then ?
tried both cases while submiting solution but no success in that . am I missing something ? some more test cases could be usefull maby ..

kotal_kahn: 2017-07-15 18:35:51

hey i am using string to store large numbers then incrementing by 1
and checking if the reverse of the string matches
is it correct way?

m_sundriyal: 2017-07-14 00:00:37

if(problem==TLE) http://www.geeksforgeeks.org/?p=23497
if(problem==WA) Read this carefully "For a given positive integer K of not more than 1000000 digits"
means that the number can be of 1000000 digits which cannot be stored in any data type.
Some Important Test Cases
Input
0
1
001
9
999

Output
1
2
2
11
1001
Thank me later

md_hasnain: 2017-07-11 11:52:42

My code is running without any tle in ideone with time limit as 5s but giving tle in spoj...

Last edit: 2017-07-18 10:08:15

Added by:adrian
Date:2004-05-01
Time limit:2s-9s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: NODEJS PERL6

Problem's scores 1 vote

Concept difficulty
Concept difficulty 37%
Implementation difficulty
Implementation difficulty 50%
468 16