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

int main(){
    string a,s,t;
    cin>>a>>s;
    rep(i,s.size()){
        if(isdigit(s[i])){
            t.push_back(a[s[i]-'0']);
        }else t.push_back(s[i]);
    }
    cout<<t<<endl;
    return 0;
}