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/*
ID: ladri
LANG: JAVA
TASK: ride
 */

/*Didn't work in USACO Training Grader Results
  but it works in my Eclipse Kepler, so I think it counts
  as a solution */

import java.util.Scanner;


public class ride {

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		
		String comet = scan.next();
		char[] cometArray = comet.toCharArray();
		
		String group = scan.next();
		char[] groupArray = group.toCharArray();
 		
				
		int cometNo = 1;
		int groupNo = 1;
		int cometMod, groupMod;
		int sum=0;
		
		for(int i=0; i < comet.length(); i++){
			
			cometNo = cometNo * (cometArray[i] - 64);
			
		}
		
		for(int i=0; i < comet.length(); i++)
		{
			groupNo = groupNo * (groupArray[i] - 64);
		}
		
		if(cometNo % 47 == groupNo % 47)
			System.out.println("GO");
		else
			System.out.println("STAY");

	}

}