import java.util.Scanner;

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

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println(scanner.next().replaceAll("[a-z]", "x"));
    }
}