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
MANISH KUMAR: 2015-06-21 21:15:38

i have checked with 9,11,99,100,9999, and the output is 11,22,101,101,1001,but stillwa

Shriram Rahatgaonkar: 2015-06-20 22:14:38

Surprised, got AC in first try, without even debugging anything. :O

Abhishek: 2015-06-17 09:06:34

If the input number is greater than 1000000,then what am i supposed to do ?? should i terminate the program ??

vasayashwanth: 2015-06-17 07:31:59

if you are getting too many WA ,try these test cases :9,11,99,100,9999 and check whether you are getting 11,22,101,101,10001 as answers......

Last edit: 2015-06-17 07:33:17
raahulsaxena: 2015-06-16 16:49:31

works in codechef...doesnt work here...saying wrong answer...why?

bazuga: 2015-06-16 12:17:02

AC finally... advice: definition of palindrome is as in wiki. don't worry about that.

najeeb97khan: 2015-06-15 17:24:54

am getting a time limit exceeding error. I am using the method of recursion bt still there is no change! Can anybody please help me out?

sharmin03: 2015-06-12 21:52:01

For all those who are getting SIGSEGV runtime error, do not use pointer char *s, although it runs on your system. Instead use the array with the size provided in the question is 1000000. This might help. :)

goyat7: 2015-06-12 17:30:14

Getting wrong answer.. even if the code is working fine on my system. Can anyone tell me the sample input to cross verify my solution ?

cassiano: 2015-06-11 02:48:04

Dealing with strings in Java gave TLE... Had to deal directly with array of short.


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