#include <bits/stdc++.h>
using namespace std;
using ll = long long;

#ifdef LOCAL
#include <debug.hpp>
#else
#define debug(...)
#endif

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(20);
    string A, S;
    cin >> A >> S;
    for (char& c : S) {
        if (isdigit(c)) c = A[c - '0'];
    }
    cout << S << '\n';
}