#include <iostream>
#include <string>

using namespace std;

int main() {
    string aah;
    string AAH;
    cin >> aah;
    cin >> AAH;
    if(aah.length() >= AAH.length()){
        cout << "go";
    }
    if(aah.length() < AAH.length()){
        cout << "no";
    }
    return 0;
}