import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String word_after = sc.next().replaceAll("[0-9a-z]", "x");
		System.out.println(word_after);
    }
} import java.util.*; util.* java public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String word_after = sc.next().replaceAll("[0-9a-z]", "x");
		System.out.println(word_after);
    }
} Main public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String word_after = sc.next().replaceAll("[0-9a-z]", "x");
		System.out.println(word_after);
    } main {
		Scanner sc = new Scanner(System.in);
		String word_after = sc.next().replaceAll("[0-9a-z]", "x");
		System.out.println(word_after);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String word_after = sc.next().replaceAll("[0-9a-z]", "x"); word_after sc.next().replaceAll("[0-9a-z]", "x") sc.next().replaceAll sc.next() sc.next sc "[0-9a-z]" "x" System.out.println(word_after) System.out.println System.out System System.out word_after String[] args args public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String word_after = sc.next().replaceAll("[0-9a-z]", "x");
		System.out.println(word_after);
    }
} public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String word_after = sc.next().replaceAll("[0-9a-z]", "x");
		System.out.println(word_after);
    }
} Main
import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String word_after = sc.next().replaceAll("[0-9a-z]", "x");
		System.out.println(word_after);
    }
}