#include <bits/stdc++.h>
#include <cstdio>
using namespace std;

string s1,s2;
 
int main()
{
	cin >> s1 >> s2;
	for (int i = s1.size () - 1;i >= 0;i --)
	{
		cout << s1 [i];
	}
	puts("");
	for (int i = s2.size () - 1;i >= 0;i --)
	{
		cout << s2 [i];
	}
	return 0;
}