def cal(i):
    answer = 1
    for j in i:
        answer = answer*dic1[j]
    answer = answer%47
    return answer
alphabet = 'abcdefghijklmnopqrstuvwxyz'
k = alphabet.upper()
num = [i for i in range(1,27)]
dic1 = {}
for i in range(26):
    dic1[k[i]] = num[i]
word1 = input()
word2 = input()
a = cal(word1)
b = cal(word2)
if a == b:
    print('GO')
else:
    print('STAY')