import java.util.*;

public class Main {
    public static void main(String[] args){
    
    Scanner sc = new Scanner(System.in);
    String S = sc.next();
	int num = S.length();
	char[] ss = S.toCharArray();
 		for(int i=0; i<num; i++){
		ss[i] = 'x';
        }   
	System.out.println(String.valueOf(ss));
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args){
    
    Scanner sc = new Scanner(System.in);
    String S = sc.next();
	int num = S.length();
	char[] ss = S.toCharArray();
 		for(int i=0; i<num; i++){
		ss[i] = 'x';
        }   
	System.out.println(String.valueOf(ss));
    }
} Main public static void main(String[] args){
    
    Scanner sc = new Scanner(System.in);
    String S = sc.next();
	int num = S.length();
	char[] ss = S.toCharArray();
 		for(int i=0; i<num; i++){
		ss[i] = 'x';
        }   
	System.out.println(String.valueOf(ss));
    } main {
    
    Scanner sc = new Scanner(System.in);
    String S = sc.next();
	int num = S.length();
	char[] ss = S.toCharArray();
 		for(int i=0; i<num; i++){
		ss[i] = 'x';
        }   
	System.out.println(String.valueOf(ss));
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String S = sc.next(); S sc.next() sc.next sc int num = S.length(); num S.length() S.length S char[] ss = S.toCharArray(); ss S.toCharArray() S.toCharArray S for(int i=0; i<num; i++){
		ss[i] = 'x';
        } int i=0; int i=0; i 0 i<num i num i++ i++ i {
		ss[i] = 'x';
        } {
		ss[i] = 'x';
        } ss[i] = 'x' ss[i] ss i 'x' System.out.println(String.valueOf(ss)) System.out.println System.out System System.out String.valueOf(ss) String.valueOf String ss String[] args args public class Main {
    public static void main(String[] args){
    
    Scanner sc = new Scanner(System.in);
    String S = sc.next();
	int num = S.length();
	char[] ss = S.toCharArray();
 		for(int i=0; i<num; i++){
		ss[i] = 'x';
        }   
	System.out.println(String.valueOf(ss));
    }
} public class Main {
    public static void main(String[] args){
    
    Scanner sc = new Scanner(System.in);
    String S = sc.next();
	int num = S.length();
	char[] ss = S.toCharArray();
 		for(int i=0; i<num; i++){
		ss[i] = 'x';
        }   
	System.out.println(String.valueOf(ss));
    }
} Main
import java.util.*;

public class Main {
    public static void main(String[] args){
    
    Scanner sc = new Scanner(System.in);
    String S = sc.next();
	int num = S.length();
	char[] ss = S.toCharArray();
 		for(int i=0; i<num; i++){
		ss[i] = 'x';
        }   
	System.out.println(String.valueOf(ss));
    }
}