letterlst = []
for i in range(26):
letterlst.append(chr((ord("a")+i)))
while True:
try:
key,encodestr =input(),input()
newkey = []
for str1 in key:
if str1 not in newkey:
newkey.append(str1)
for str1 in letterlst:
if str1 not in newkey:
newkey.append(str1)
encodeDic = dict(zip(letterlst,newkey))
newencodestr = ""
for str1 in encodestr:
newencodestr += encodeDic[str1]
print(newencodestr)
except:
break

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