#include <iostream>
#include <string>
using namespace std;
string t1;
string t2;
int sum1 = 1;
int sum2 = 1;
int s[26][2] = {
	{0,1},{1,2},{2,3},{3,4},{4,5},{5,6},{6,7},{7,8},{8,9},{9,10},{10,11},{11,12},{12,13},{13,14},{14,15},{15,16},{16,17},{17,18},{18,19},{19,20},{20,21},{21,22},{22,23},{23,24},{24,25},{25,26},
};
int main(){
	cin>>t1>>t2;
	for(int i = 0;i < t1.length();i++){
		sum1 *= s[t2[i] - 'A'][1];
	}
	for(int i = 0;i < t2.length();i++){
		sum2 *= s[t2[i] - 'A'][1];
	}
	int a1,a2;
	a1 = sum1 % 47;
	a2 = sum2 % 47;
	if(a1==a2){
		cout<<"GO";
		return 0;
	}
	cout<<"STAY";
}