#include<bits/stdc++.h>
#define ll long long
#define ld long double
#define rep(i, n) for(ll i=0; i<n; i++)
#define rrep(i, n) for(ll i=n-1; i>=0; i--)
#define rep2(i, a, b) for(ll i=a; i<b; i++)
#define Pii pair<int, int>
#define Pll pair<ll, ll>
#define fi first
#define se second
#define Vi vector<int>
#define VVi vector<vector<int>>
#define Vl vector<ll>
#define VVl vector<vector<ll>>
using namespace std;
string YES[2] = {"NO", "YES"};
string Yes[2] = {"No", "Yes"};
string yes[2] = {"no", "yes"};

int main(){
    string a, s;
    cin >> a >> s;

    rep(i, s.size()){
        if(s[i]-'0'<10){
            cout<<a[s[i]-'0'];
        }else{
            cout<<s[i];
        }
    }
    cout<<endl;
    return 0;
}