/* CS201 Programming Eample
   Programmer: RJB
   Project: Chapter 3
   Demonstrating: String handling
   Description/Vision: Will read input and then print it out backwards
   Analysis
	Input: A sequence of characters
	Output: The same sequence reversed
	By putting input characters in front of the previous characters
		we can build a reversed string

   Algorithm
        1. Keep reading character c until the end
		1.1 put c in front of s
	2. Print s
   Versions:
	Downloaded Dr. Botting's skeleton file.  Wed Feb  6 17:08:51 PST 2008
*/
#include <iostream>
#include <string>

using namespace std;

int main()
{  
	char c;
	string s;
	while(cin.get(c))
	{
	   s = c + s;
	}

	cout << s;

	return 0;

}