import java.util.Scanner;

public class prog {

	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		while(true) {
			String n = in.next();
			String c1 = in.next();
			String c2 = in.next();
			if(n.equals("0") && c1.equals("0") && c2.equals("0"))
				break;
			n = n.replaceAll(c1,c2);
			int result = Integer.parseInt(n);
			System.out.println(result);
		}
		in.close();
	}

}