import java.util.Scanner;

    public class Main {

        public static void main(String[] args) {
            Scanner sc = new Scanner(System.in);

            //定义pStr记录人类， uStr记录UFO
            String pStr = sc.next();
            String uStr = sc.next();

            //定义pSum和uSum来记录pStr和uStr的和
            int pSum = 1;
            int uSum = 1;

            //遍历pStr和uStr，将每个字符转化为数字，然后相乘
            for (int i = 0; i < pStr.length(); i++) {
                pSum *= pStr.charAt(i) - 'A' + 1;
            }
            for (int i = 0; i < uStr.length(); i++) {
                uSum *= uStr.charAt(i) - 'A' + 1;
            }

          if ((pSum % 47) == (uSum % 47) ) {
                System.out.println("GO");
            } else {
                System.out.println("STAY");
            }
        }
    }