#include <stdio.h>
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000000

int main(){
	
	string s;
	cin>>s;
	
	string t;
	cin>>t;
	
	rep(_,t.size()){
		if(isdigit(t[_])){
			t[_] = s[t[_]-'0'];
		}
	}
	
	cout<<t<<endl;
	
    return 0;
}