import java.util.Scanner;

class B {
    public static void main(String... args) {
        final Scanner sc = new Scanner(System.in);
        final String S = sc.next().intern();
        System.out.println(S.replaceAll(".", "x"));
    }
}

public class Main {
    public static void main(String... args) {
        B.main();
    }
} import java.util.Scanner; Scanner java.util class B {
    public static void main(String... args) {
        final Scanner sc = new Scanner(System.in);
        final String S = sc.next().intern();
        System.out.println(S.replaceAll(".", "x"));
    }
} B public static void main(String... args) {
        final Scanner sc = new Scanner(System.in);
        final String S = sc.next().intern();
        System.out.println(S.replaceAll(".", "x"));
    } main {
        final Scanner sc = new Scanner(System.in);
        final String S = sc.next().intern();
        System.out.println(S.replaceAll(".", "x"));
    } final Scanner sc = new Scanner(System.in); sc new Scanner(System.in) final String S = sc.next().intern(); S sc.next().intern() sc.next().intern sc.next() sc.next sc System.out.println(S.replaceAll(".", "x")) System.out.println System.out System System.out S.replaceAll(".", "x") S.replaceAll S "." "x" String... args args public class Main {
    public static void main(String... args) {
        B.main();
    }
} Main public static void main(String... args) {
        B.main();
    } main {
        B.main();
    } B.main() B.main B String... args args public class Main {
    public static void main(String... args) {
        B.main();
    }
} public class Main {
    public static void main(String... args) {
        B.main();
    }
} Main
import java.util.Scanner;

class B {
    public static void main(String... args) {
        final Scanner sc = new Scanner(System.in);
        final String S = sc.next().intern();
        System.out.println(S.replaceAll(".", "x"));
    }
}

public class Main {
    public static void main(String... args) {
        B.main();
    }
}
