#include <bits/stdc++.h>
#define rep(i, a, n) for(int i = a; i < n; i++)
#define v(T) vector<T>
using namespace std;
using ll = long long;
using P = pair<int, int>;

int main()
{
    string a, s;
    cin >> a >> s;
    string ans;
    rep(i, 0, s.size()){
        if(0 <= s[i] - '0' && s[i] - '0' <= 9) ans.push_back(a[s[i] - '0']);
        else ans.push_back(s[i]);
    }
    cout << ans << endl;
    return 0;
}