a_count = 1
b_count = 1
s = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
li = list(s)
alpha = input()
bravo = input()
for i in alpha:
a_count *= li.index(i) + 1
for i in bravo:
b_count *= li.index(i) + 1
if a_count % 47 == b_count % 47:
print('GO')
else:
print('STAY')