#include<iostream>
using namespace std;
int main()
{
    string s1,s2;
    int a;
    if(!(cin>>s1>>s2))
    {
        cout<<"Invalid input";
        return 0;
    }
    else
    {
        if(s1.length()!=s2.length())
        {
            cout<<"Invalid input";
        }
        else 
        {
            a=s1.length();
            for(int i=0;i<s1.length();i++)
            {
                
                if(s1[a]!=s2[a-2])
                {
                    cout<<"False";
                    return 0;
                }
                else
                {
                    cout<<"True"
                    return 0;
                }
            }
        }
    }
    return 0;
}