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

template <class A, class B> bool cmin(A& a, B b) { return a > b && (a = b, true); }
template <class A, class B> bool cmax(A& a, B b) { return a < b && (a = b, true); }

signed main() {
  cin.tie(nullptr)->sync_with_stdio(false);

  string S, T;
  cin >> S >> T;

  int N = (int)T.size();
  for (int i = 0; i < N; i++) {
    if (isdigit(T.at(i))) T.at(i) = S.at(T.at(i) - '0');
  }
  cout << T << '\n';
}