word1, word2 = input().split()
word1_index = 0
word2_index = 0
for letter in word1:
if letter in word2:
word1_index = word1.index(letter)
word2_index = word2.index(letter)
break
i = 0
while i < len(word2):
j = 0
while j < len(word1):
if i == word2_index:
print(word1, end='')
j = len(word1)
elif j == word1_index:
print(word2[i], end='')
else:
print('.', end='')
j += 1
i += 1
print()