//挺简短的就不加注释了

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int star=1,group=1;
	char letter;
	while(cin>>letter&&letter!='\n') star*=(int)letter-64;
	while(cin>>letter&&letter!='\n') group*=(int)letter-64;
	if(star%47==group%47) cout<<"GO";
	else cout<<"STAY";
	return 0;
}