#include<bits/stdc++.h> using namespace std;

int main()
{
	char a[6],b[6];
	int a1=1,b1=1;
	cin>>a;
	cin>>b;
	for(int i=0;i<6;i++)
	{
		if(a[i]!='\0')
		a1=a1*(a[i]-'@');
		if(b[i]!='\0')
		b1=b1*(b[i]-'@');
	}
	if(b1%47==a1%47)
	cout<<"GO"<<endl;
	else
	cout<<"STAY"<<endl;
	return 0;
}