#include <bits/stdc++.h>
//#include <atcoder/all>
using namespace std;
//using namespace atcoder;
typedef long long ll;
typedef pair<ll,ll> P;
//typedef modint998244353 mint;
#define rep(i,a,b) for(ll i=a;i<b;i++)
#define rrep(i,a,b) for(ll i=a;i>=b;i--)
int main(void){
    cin.tie(0);
    ios::sync_with_stdio(0);
    string s,t;
    cin>>s>>t;
    rep(i,0,t.size()){
        if(0<=t[i]-'0'&&t[i]-'0'<=9){
            t[i]=s[t[i]-'0'];
        }
    }
    cout<<t<<endl;

}