#include<stdio.h>
int main()
{
	char c1,c2;
	int b1,b2,a1=1,a2=1;
	while(c1!='\n')
	{
		c1=getchar();
		a1=a1*(c1-64);
	}
	while(c2!='\n')
	{
		c2=getchar();
		a2=a2*(c2-64);
	}
	b1=a1%47;
	b2=a2%47;
	if(b1==b2)printf("GO");
	else printf("STAY");
	return 0;
}