#include <iostream>
#include <string>
using namespace std;
int main()
{
    string a,b;
    int asum=1,bsum=1;
    cin>>a>>b;;
    for (int i=0; i<a.length(); i++)
    {
        asum*=a[i]-64;
    }
    for (int i=0; i<a.length(); i++)
    {
        bsum*=b[i]-64;
    }
    if (asum%47==bsum%47)
    {
        cout<<"GO";
    }
    else
    {
        cout<<"STAY";
    }
    return 0;
}