#include<iostream>
#include<string>
#include<string.h>
#include<list>

using namespace std;


string reverse(string s)
{
	string result = "";

	for(int i = s.length()-1; i >=0; i--)
	{
		result += s[i];
	}
	return result;
}


void main()
{
	string s;
	cin >> s;
	string sr = reverse(s);
	cout << sr << endl;

	list<char> myChars;

	for(int i = 0; i < s.length(); i++)
	{
		myChars.push_back(s[i]);
	}

	myChars.reverse();

	string s2 = "";
	list<char>::iterator i = myChars.begin();
	while(i != myChars.end())
	{
		s2 += *i;
		i++;
	}

	cout << s2 << endl;

	//list<int> stuff;
	//
	//int x;
	//do
	//{
	//	cin >> x;
	//	if(x != 0)
	//	{
	//		stuff.push_back(x);
	//	}
	//}
	//while(x != 0);

	////do
	////{
	////	cin >> x;
	////	if(x != 0)
	////	{
	////		stuff.push_front(x);
	////	}
	////}
	////while(x != 0);

	//
	//list<int>::iterator i = stuff.begin();
	//i++;
	//i++;

	//stuff.insert(i,32342);
	//i--;
	//i--;
	//stuff.erase(i);
	//stuff.remove(5);// remove items with the value 5

	//i = stuff.begin();
	//while(i != stuff.end())
	//{
	//	cout << *i << endl;
	//	i++;
	//}


	////for(int i = 0; i < stuff.size(); i++)
	////{
	////	cout << stuff.at(i) << endl;
	////}

}