alphabet=['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']
group=[i for i in input()]
star=[i for i in input()]
groupnum=1
starnum=1
for i in group:
    i=alphabet.index(i)+1
    groupnum*=i
for i in star:
    i=alphabet.index(i)+1
    starnum*=i
if groupnum%47==starnum%47:
    print("GO")
else:
    print("STAY")