#include <algorithm>
#include <cmath>
#include <cstdio>
#include <functional>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>
using namespace std;
using ll = long long;
int main() {
  string a, s;
  cin >> a >> s;
  int n = s.length();
  for(int i = 0; i < n; i++) {
    if(s[i] >= '0' && s[i] <= '9') {
      cout << a[s[i] - '0'];
    } else {
      cout << s[i];
    }
  }
  cout << endl;
  return 0;
}