import java.util.*;
import java.io.*;

public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        char[] arr = br.readLine().toCharArray();
        Arrays.fill(arr, 'x');
        System.out.println(arr);
    }
} import java.util.*; util.* java import java.io.*; io.* java public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        char[] arr = br.readLine().toCharArray();
        Arrays.fill(arr, 'x');
        System.out.println(arr);
    }
} Main public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        char[] arr = br.readLine().toCharArray();
        Arrays.fill(arr, 'x');
        System.out.println(arr);
    } main {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        char[] arr = br.readLine().toCharArray();
        Arrays.fill(arr, 'x');
        System.out.println(arr);
    } BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br new BufferedReader(new InputStreamReader(System.in)) char[] arr = br.readLine().toCharArray(); arr br.readLine().toCharArray() br.readLine().toCharArray br.readLine() br.readLine br Arrays.fill(arr, 'x') Arrays.fill Arrays arr 'x' System.out.println(arr) System.out.println System.out System System.out arr String[] args args public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        char[] arr = br.readLine().toCharArray();
        Arrays.fill(arr, 'x');
        System.out.println(arr);
    }
} public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        char[] arr = br.readLine().toCharArray();
        Arrays.fill(arr, 'x');
        System.out.println(arr);
    }
} Main
import java.util.*;
import java.io.*;

public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        char[] arr = br.readLine().toCharArray();
        Arrays.fill(arr, 'x');
        System.out.println(arr);
    }
}