#include<bits/stdc++.h>
using namespace std;
using LL=long long;
using ULL=unsigned long long;
#define rep(i,n) for(int i=0; i<(n); i++)

int main(){
  string A,S; cin>>A>>S;
  for(char& c:S){
    if('0'<=c&&c<='9') c=A[c-'0'];
  }
  cout<<S<<endl;
  return 0;
}