import java.io.*;
import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        PrintWriter out = new PrintWriter(System.out);
//        DecimalFormat df = new DecimalFormat("0.00000000");
        
        String s = sc.next();
        String ans = "";
        for (int i = 0; i < s.length(); i++)
            ans += "x";
        out.println(ans);
        
        out.flush();
    }
} import java.io.*; io.* java import java.util.*; util.* java public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        PrintWriter out = new PrintWriter(System.out);
//        DecimalFormat df = new DecimalFormat("0.00000000");
        
        String s = sc.next();
        String ans = "";
        for (int i = 0; i < s.length(); i++)
            ans += "x";
        out.println(ans);
        
        out.flush();
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        PrintWriter out = new PrintWriter(System.out);
//        DecimalFormat df = new DecimalFormat("0.00000000");
        
        String s = sc.next();
        String ans = "";
        for (int i = 0; i < s.length(); i++)
            ans += "x";
        out.println(ans);
        
        out.flush();
    } main {
        Scanner sc = new Scanner(System.in);
        PrintWriter out = new PrintWriter(System.out);
//        DecimalFormat df = new DecimalFormat("0.00000000");
        
        String s = sc.next();
        String ans = "";
        for (int i = 0; i < s.length(); i++)
            ans += "x";
        out.println(ans);
        
        out.flush();
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) PrintWriter out = new PrintWriter(System.out); out new PrintWriter(System.out) String s = sc.next(); s sc.next() sc.next sc String ans = ""; ans "" for (int i = 0; i < s.length(); i++)
            ans += "x"; int i = 0; int i = 0; i 0 i < s.length() i s.length() s.length s i++ i++ i ans += "x"; ans += "x" ans "x" out.println(ans) out.println out ans out.flush() out.flush out String[] args args public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        PrintWriter out = new PrintWriter(System.out);
//        DecimalFormat df = new DecimalFormat("0.00000000");
        
        String s = sc.next();
        String ans = "";
        for (int i = 0; i < s.length(); i++)
            ans += "x";
        out.println(ans);
        
        out.flush();
    }
} public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        PrintWriter out = new PrintWriter(System.out);
//        DecimalFormat df = new DecimalFormat("0.00000000");
        
        String s = sc.next();
        String ans = "";
        for (int i = 0; i < s.length(); i++)
            ans += "x";
        out.println(ans);
        
        out.flush();
    }
} Main
import java.io.*;
import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        PrintWriter out = new PrintWriter(System.out);
//        DecimalFormat df = new DecimalFormat("0.00000000");
        
        String s = sc.next();
        String ans = "";
        for (int i = 0; i < s.length(); i++)
            ans += "x";
        out.println(ans);
        
        out.flush();
    }
}