#include <bits/stdc++.h>
#define FastIO (cin.tie(0), cout.tie(0), ios::sync_with_stdio(false))
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using namespace std;

int main() {
  FastIO;
  string A, S;
  cin >> A >> S;

  for (auto ch : S) {
    if ('0' <= ch && ch <= '9')
      cout << A[ch - '0'];
    else
      cout << ch;
  }
  cout << '\n';
  return 0;
}