#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> P;
#define DUMP(x) cout << #x << " = " << (x) << endl;
#define FOR(i, m, n) for (ll i = m; i < n; i++)
#define IFOR(i, m, n) for (ll i = n - 1; i >= m; i--)
#define REP(i, n) FOR(i, 0, n)
#define IREP(i, n) IFOR(i, 0, n)
#define FOREACH(x, a) for (auto&(x) : (a))
#define ALL(v) (v).begin(), (v).end()
#define SZ(x) ll(x.size())

int main() {
  string s, t;
  cin >> s >> t;
  map<char, char> mp;
  REP(i, 10) {
    char c = '0' + i;
    mp[c] = s[i];
  }

  REP(i, SZ(t)) {
    if (mp.count(t[i])) {
      t[i] = mp[t[i]];
    }
  }
  cout << t << endl;
}