import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		String str = sc.next();

		System.out.println(str.replaceAll("[a-z]", "x"));
		sc.close();
	}
} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		String str = sc.next();

		System.out.println(str.replaceAll("[a-z]", "x"));
		sc.close();
	}
} Main public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		String str = sc.next();

		System.out.println(str.replaceAll("[a-z]", "x"));
		sc.close();
	} main {

		Scanner sc = new Scanner(System.in);

		String str = sc.next();

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

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		String str = sc.next();

		System.out.println(str.replaceAll("[a-z]", "x"));
		sc.close();
	}
} public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		String str = sc.next();

		System.out.println(str.replaceAll("[a-z]", "x"));
		sc.close();
	}
} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		String str = sc.next();

		System.out.println(str.replaceAll("[a-z]", "x"));
		sc.close();
	}
}
