#include<bits/stdc++.h>
using namespace std;
char a[7],b[7];//开6，8和10也都试过了
int s1=1,s2=1;
int main()
{
    gets(a);
    gets(b);
    for(int i=0;i<6;i++)
    {
    	if(a[i]!=0)
    	s1*=int(a[i])-64;
    	if(b[i]!=0)
    	s2*=int(b[i])-64;
    }
    if(s1%47==s2%47)
    cout<<"GO";
    else cout<<"STAY";
	return 0;
}