Algorithm Problem 2: Easy

Algorithm Problem
Algorithm Problem Solution

Hey, try to solve this. This is an easy problem to solve.

Problem Level: Easy

Problem Statement:

A palindrome is a word, number, or phrase that reads the same forwards as backwards. For example, the name “anna” is a palindrome. Numbers can also be palindromes (e.g. 151 or 753357).

Additionally numbers can of course be ordered in size. The first few palindrome

numbers are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33, …

The number 10 is not a palindrome (even though you could write it as 010) but a zero as leading digit is not allowed.


The input consists of a series of lines with each line containing one integer value i (1 ≤ i ≤2*109).

This integer value i indicates the index of the palindrome number that is to be written to the output, where index 1 stands for the first palindrome number (1), index 2 stands for the second palindrome number (2) and so on. The input is terminated by a line containing 0.


For each line of input (except the last one) exactly one line of output containing a single (decimal) integer value is to be produced. For each input value i the i-th palindrome number is to be written to the output.

Sample Input                                                 Output for Sample Input

1                                                                    1
12                                                                  33
24                                                                  151

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