#include <bits/stdc++.h>

using namespace std;

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

    for (char c: s) {
        if (isdigit(c)) {
            printf("%c", a[c-'0']);
        } else {
            printf("%c", c);
        }
    }
    puts("");

    return 0;
}