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