package main;

import java.util.*;

public class B {

    private ArrayList<String> firsts;
    private ArrayList<String> seconds;

    public B() {
        firsts = new ArrayList<String>(1000);
        seconds = new ArrayList<String>(1000);
        getInput();
    }

    private void getInput() {
        Scanner sc = new Scanner(System.in);
        String first = sc.nextLine();
        String second = null;
        while (!first.equals("THEEND")) {
            second = sc.nextLine();
            firsts.add(first);
            seconds.add(second);
            first = sc.nextLine();
        }
        sc.close();
    }

    public static void main(String[] args) {
        B b = new B();
        b.solveEverything();
    }

    private void solveEverything() {
        for (int i = 0; i < firsts.size(); i++) {
            solve(firsts.get(i), seconds.get(i));
        }
    }

    private void solve(String first, String second) {
        int segmentTotal = second.length()/first.length();
        StringBuilder[] segments = new StringBuilder[segmentTotal];

        for(int i = 0; i < segmentTotal; i++){
            segments[i] = new StringBuilder(first);
        }

        int sCharCounter = 0;

        for(char c = 'A'; c <= 'Z'; c++){
            int loc = first.indexOf(c);
            while(loc != -1){
                for(int i = 0; i < segmentTotal; i++){
                    segments[i].setCharAt(loc, second.charAt(sCharCounter++));
                }
                loc = first.indexOf(c, loc+1);
            }

        }
        StringBuilder answer = new StringBuilder("");
        for(int i = 0; i < segmentTotal; i++){
            answer.append(segments[i]);
        }
        System.out.println(answer.toString());
    }
}