#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cstring>
#include <cstdlib>
#include <cmath>
using namespace std;
using ll = long long;

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

    for (auto &c : s) {
        if ('a' <= c && c <= 'z') continue;
        c = a[c - '0'];
    }

    cout << s << endl;

    return 0;
}