import sys
input = lambda : sys.stdin.readline().rstrip()

sys.setrecursionlimit(2*10**5+10)
write = lambda x: sys.stdout.write(x+"\n")
_print = lambda *x: print(*x, file=sys.stderr)

a = input()
s = input()
d = {}
for i in range(10):
    d[str(i)] = a[i]
ans = []
for c in s:
    if c in d:
        c = d[c]
    ans.append(c)
print("".join(ans))