import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		String reg = ".";
		Pattern p = Pattern.compile(reg);
		Matcher m = p.matcher(s);
		String result = m.replaceAll("x");		
		System.out.println(result);

	}

} import java.util.Scanner; Scanner java.util import java.util.regex.Matcher; Matcher java.util.regex import java.util.regex.Pattern; Pattern java.util.regex public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		String reg = ".";
		Pattern p = Pattern.compile(reg);
		Matcher m = p.matcher(s);
		String result = m.replaceAll("x");		
		System.out.println(result);

	}

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		String reg = ".";
		Pattern p = Pattern.compile(reg);
		Matcher m = p.matcher(s);
		String result = m.replaceAll("x");		
		System.out.println(result);

	} main {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		String reg = ".";
		Pattern p = Pattern.compile(reg);
		Matcher m = p.matcher(s);
		String result = m.replaceAll("x");		
		System.out.println(result);

	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String s = sc.next(); s sc.next() sc.next sc String reg = "."; reg "." Pattern p = Pattern.compile(reg); p Pattern.compile(reg) Pattern.compile Pattern reg Matcher m = p.matcher(s); m p.matcher(s) p.matcher p s String result = m.replaceAll("x"); result m.replaceAll("x") m.replaceAll m "x" System.out.println(result) System.out.println System.out System System.out result String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		String reg = ".";
		Pattern p = Pattern.compile(reg);
		Matcher m = p.matcher(s);
		String result = m.replaceAll("x");		
		System.out.println(result);

	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		String reg = ".";
		Pattern p = Pattern.compile(reg);
		Matcher m = p.matcher(s);
		String result = m.replaceAll("x");		
		System.out.println(result);

	}

} Main
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		String reg = ".";
		Pattern p = Pattern.compile(reg);
		Matcher m = p.matcher(s);
		String result = m.replaceAll("x");		
		System.out.println(result);

	}

}