#include<bits/stdc++.h>
// #include<atcoder/all>

using namespace std;
// using namespace atcoder;
using ll = long long;
using ull = unsigned long long;
using P = pair<int,int>;
#define rep(i,n) for(ll i = 0;i < (ll)n;i++)
#define ALL(x) (x).begin(),(x).end()
#define MOD 1000000007


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

  return 0;
}