A = list(input())
S = list(input())
# print(A)
numbers = {}
for k, v in enumerate(A):
    numbers[k] = v
# print(numbers)

results = []
for s in S:
    if s.isdigit():
        results.append(numbers[int(s)])
    elif s.isalpha():
        results.append(s)
print("".join(results))