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
mmani0831: 2022-02-28 17:43:28

I got right answers for sample and custom test case. But still i am getting WA.

zinfx_09: 2022-02-23 03:19:25

10^6 digits not 10^6 int...

slony: 2022-01-16 20:42:52

For me, the problem with wrong answers was caused by leading zeros or spaces in input values. So assume that you must sanitize input first.

naman_kumar1: 2021-11-19 19:18:06

my code is running successfully in cmd prompt but judge is not accepting it, it is showing wrong answer. what could be the reason behind it.

lxy2000: 2021-11-19 05:58:14

牛逼

shubhojeet_999: 2021-11-18 17:42:00

<snip>
That was my code, can anyone please tell, what's the error ?

[NG]: Welcome to SPOJ; please read the footer.

Last edit: 2021-11-18 22:33:59
johanfire: 2021-10-13 04:45:28

I got it but it's exceding time limit, I wrote 19 lines of code :(

kemar: 2021-09-17 18:06:08

It seems that the last line of the input file doesn't end with a '\n'.
This costed me more than 10 WA !
Finally got AC in Python using a list of digits.

adam____: 2021-08-26 16:31:47

Big thanks to @shreyas_07 for TCs, done in bout 1.5h, be careful with inverting the order of digits and with odd and even number of them.

novinsky1: 2021-08-19 09:00:15

yes, it passed :D


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