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Problem
Read from standard input a word of at most `100` characters (uppercase
and lowercase letters of the English alphabet, no spaces) and print the
word reversed (read from right to left).
The reversal must be done in place, within the same character array,
without using a second string.
Input format
Input
input.txt
The program reads from standard input a single word `s`, with no spaces. - the word has between `1` and `100` characters - the word contains no spaces
Output format
Output
output.txt
The program prints to standard output the reversed word, followed by a newline.
Example
input
informatica
output
acitamrofni
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Sample cases (from the problem)
Sample Case 1
Input
informatica
Expected output
acitamrofni
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