#include <stdio.h>
int main (void)
{
    char a,b;
    int s1=1,s2=1;
    while((a=getchar())==1)
        s1*=(a-'A'+1);
    while((b=getchar())==1)
        s2*=(b-'A'+1);
    printf("%s",s1%47==s2%47?"GO":"STAY");
    return 0;
}