#include<bits/stdc++.h>
using namespace std;
string UFO,TEAM;
long long ufo=1,team=1;
int main()
{
	cin>>UFO>>TEAM;
	for(int i=0;i<UFO.length();i++)
	{
		switch(UFO[i])
		{
			case 'A':
				ufo=ufo*1;
			case 'B':
				ufo=ufo*2;
			case 'C':
				ufo=ufo*3;
			case 'D':
				ufo=ufo*4;
			case 'E':
				ufo=ufo*5;
			case 'F':
				ufo=ufo*6;
			case 'G':
				ufo=ufo*7;
			case 'H':
				ufo=ufo*8;
			case 'I':
				ufo=ufo*9;
			case 'J':
				ufo=ufo*10;
			case 'K':
				ufo=ufo*11;
			case 'L':
				ufo=ufo*12;
			case 'M':
				ufo=ufo*13;
			case 'N':
				ufo=ufo*14;
			case 'O':
				ufo=ufo*15;
			case 'P':
				ufo=ufo*16;
			case 'Q':
				ufo=ufo*17;
			case 'R':
				ufo=ufo*18;
			case 'S':
				ufo=ufo*19;
			case 'T':
				ufo=ufo*20;
			case 'U':
				ufo=ufo*21;
			case 'V':
				ufo=ufo*22;
			case 'W':
				ufo=ufo*23;
			case 'X':
				ufo=ufo*24;
			case 'Y':
				ufo=ufo*25;
			case 'Z':	
				ufo=ufo*26;	
		}
	}
	for(int j=0;j<TEAM.length();j++)
	{
		switch(TEAM[j])
		{
			case 'A':
				team=team*1;
			case 'B':
				team=team*2;
			case 'C':
				team=team*3;
			case 'D':
				team=team*4;
			case 'E':
				team=team*5;
			case 'F':
				team=team*6;
			case 'G':
				team=team*7;
			case 'H':
				team=team*8;
			case 'I':
				team=team*9;
			case 'J':
				team=team*10;
			case 'K':
				team=team*11;
			case 'L':
				team=team*12;
			case 'M':
				team=team*13;
			case 'N':
				team=team*14;
			case 'O':
				team=team*15;
			case 'P':
				team=team*16;
			case 'Q':
				team=team*17;
			case 'R':
				team=team*18;
			case 'S':
				team=team*19;
			case 'T':
				team=team*20;
			case 'U':
				team=team*21;
			case 'V':
				team=team*22;
			case 'W':
				team=team*23;
			case 'X':
				team=team*24;
			case 'Y':
				team=team*25;
			case 'Z':	
				team=team*26;			
			}
	}
	if(ufo%47==team%47)
	{
		cout<<"GO"<<endl;
		return 0;
	}
	cout<<"STAY"<<endl;
	
	
	
	
	
	
	
	return 0;
}