[USACO]Your Ride Is Here

/*
ID: loniskai
LANG: C
TASK: ride
*/
#include <stdio.h>
main () {
    FILE *fin  = fopen ("ride.in", "r");
    FILE *fout = fopen ("ride.out", "w");
    long int a,b,c,d;
    char s1[7],s2[7];
    fscanf (fin, "%s\n%s", &s1, &s2);
    b=1;
    for(a=0;(s1[a]!='\0')&&(a<=5);a++)
        b*=(s1[a]-64);
    d=1;
    for(a=0;(s2[a]!='\0')&&(a<=5);a++)
        d*=(s2[a]-64);
    c=0;
    if ((b%47)==(d%47)) 
       c=1;
    if 	(c==1) fprintf (fout,"GO\n");
    else    fprintf (fout,"STAY\n");
    exit (0); 
}