#include<iostream>
using namespace std;
int main()
{
    string s1, s2;
    cin>>s1>>s2;
    for (char c : s1+s2)
    if(!islower(c))
    {
        cout<<"Invalid input";
        return 0;
    }
    if(s1.length()!=s2.length())
    cout<<"false";
    else
    {
        string r= s1.substr(2)+s1.substr(0,2);
        cout<<(r==s2 ? "true";"false");
    }
}