import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class prog {



    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));


        while (true) {
            String line = br.readLine();

            String [] split = line.split(" ");
            String n = split[0];
            String c1 = split[1];
            String c2 = split[2];

            if (n.equals("0") && c1.equals("0") && c2.equals("0")) {
                return;
            }

            String s = n.replace(c1, c2);
            int ret = Integer.parseInt(s);
            System.out.println(ret);
        }


    }




}