/*
 * ride.cpp
 *
 *  Created on: 25/10/2008
 *      Author: Kuin
 */

 /*
ID: iriarte1
LANG: C++
TASK: ride
*/

#include <iostream>
#include <string>
#include <vector>
#include <fstream>

using namespace std;


ifstream fin("ride.in");
ofstream fout("ride.out");


 int main(){

   string cometa="ABSTAR";
   string grupo="USACO";

   fin >> cometa;
   fin >> grupo;

   int c,g;
   c=g=1;

   for(int i=0;i<cometa.size();i++) c*=cometa[i]-'A'+1;
   for(int i=0;i<grupo.size();i++) g*=grupo[i]-'A'+1;


   if(c%47==g%47) fout << "GO" << endl;
   else  fout << "STAY" << endl;



 }