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

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