#include <iostream>
using namespace std;

int ctoi(char c){
    if (c >= '0' && c <= '9') {
        return c - '0';
    }
    return -1;
}

int main(void){
    string a, s;
    cin >> a >> s;
    for (int i = 0; i < (int)s.size(); i++) {
        int m = ctoi(s[i]);
        if (m != -1) {
            s[i] = a[m];
        }
    }
    cout << s << endl;
}