Problem
Given a string S, print the shortest palindrome that can be formed by adding characters in front of S.
Input format
Input
input.txt
- String S (1–50, lowercase)
Output format
Output
output.txt
- The resulting palindrome
Example
input
aacecaaa
output
aaacecaaa
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Sample cases (from the problem)
Sample Case 1
Input
aacecaaa
Expected output
aaacecaaa
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