import java.util.*;
public class Niz18{
	public static void main(String[]args){
		Scanner sc = new Scanner(System.in);
		System.out.print("Vnesi stavek: ");
		String stavek = sc.nextLine();
		System.out.print("Vnesi cenzurirano besedo: ");
		String sporB = sc.nextLine();
		StringBuffer cenzura = new StringBuffer();
		for (int i =0; i<sporB.length(); i++)
			cenzura.append('x');
		StringBuffer sb = new StringBuffer(stavek);
		int indeks = sb.indexOf(sporB);
		while(indeks != -1){
			sb.replace(indeks,indeks+sporB.length(),cenzura.toString());
			indeks = sb.indexOf(sporB, indeks+cenzura.length());
		}
		System.out.println(sb.toString());
	}
}