#include <iostream>
#include <string>
using namespace std;

string a;
string s;

int main() {
	cin >> a >> s;
	for (int i = 0; i < s.length(); i++) {
		if ('0' <= s[i] && s[i] <= '9') {
			cout << a[s[i] - '0'];
		}
		else {
			cout << s[i];
		}
	}
	cout << endl;
	return 0;
}