#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define rep(i, n) for (int i = 0; i < (n); i++)
#define P pair<int, int>

int main() {
  string a, s;
  cin >> a >> s;
  rep(i, s.size()) {
    if (s[i]-'0' >= 0 && s[i]-'0' <= 9) {
      cout << a[s[i]-'0'];
    } else cout << s[i];
  }
  cout << endl;


}