#include <iostream>
#include <vector>
#include <map>
#include<string>
using namespace std;
int main() {
    string s;
    string t;
    map<int,char> b;
    cin>>s;
    cin>>t;
    for (int i=0;i<s.size();i++){
        b[i]=s[i];
    }
    for (int i=0;i<s.size();i++){
        if(t[i]<='9') cout<<b[t[i]-'0'];
        else cout<<t[i];
    }
    
    cout<<endl;
        return 0;
}