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

int main() {
  string S, T; cin >> S >> T;
  string ans = "";
  for(int i = 0; i < (int)T.size(); i++){
    if(!('0' <= T[i] and T[i] <= '9')) ans += T[i];
    else{
      char c = T[i]-48;
      ans += S[c];
    }
  }
  cout << ans << endl;
}