import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String h = sc.nextLine();
       System.out.println(h.replaceAll("[a-z]","x"));
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String h = sc.nextLine();
       System.out.println(h.replaceAll("[a-z]","x"));
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String h = sc.nextLine();
       System.out.println(h.replaceAll("[a-z]","x"));
    } main {
        Scanner sc = new Scanner(System.in);
        String h = sc.nextLine();
       System.out.println(h.replaceAll("[a-z]","x"));
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String h = sc.nextLine(); h sc.nextLine() sc.nextLine sc System.out.println(h.replaceAll("[a-z]","x")) System.out.println System.out System System.out h.replaceAll("[a-z]","x") h.replaceAll h "[a-z]" "x" String[] args args public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String h = sc.nextLine();
       System.out.println(h.replaceAll("[a-z]","x"));
    }
} public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String h = sc.nextLine();
       System.out.println(h.replaceAll("[a-z]","x"));
    }
} Main
import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String h = sc.nextLine();
       System.out.println(h.replaceAll("[a-z]","x"));
    }
}