import java.util.Scanner;
class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    StringBuilder sb = new StringBuilder(sc.next());
    for(int i=0; i<sb.length(); i++){
    	sb.setCharAt(i, 'x');
    }
    System.out.println(sb.toString());
  }
}

    
     import java.util.Scanner; Scanner java.util class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    StringBuilder sb = new StringBuilder(sc.next());
    for(int i=0; i<sb.length(); i++){
    	sb.setCharAt(i, 'x');
    }
    System.out.println(sb.toString());
  }
} Main public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    StringBuilder sb = new StringBuilder(sc.next());
    for(int i=0; i<sb.length(); i++){
    	sb.setCharAt(i, 'x');
    }
    System.out.println(sb.toString());
  } main {
    Scanner sc = new Scanner(System.in);
    StringBuilder sb = new StringBuilder(sc.next());
    for(int i=0; i<sb.length(); i++){
    	sb.setCharAt(i, 'x');
    }
    System.out.println(sb.toString());
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) StringBuilder sb = new StringBuilder(sc.next()); sb new StringBuilder(sc.next()) for(int i=0; i<sb.length(); i++){
    	sb.setCharAt(i, 'x');
    } int i=0; int i=0; i 0 i<sb.length() i sb.length() sb.length sb i++ i++ i {
    	sb.setCharAt(i, 'x');
    } {
    	sb.setCharAt(i, 'x');
    } sb.setCharAt(i, 'x') sb.setCharAt sb i 'x' System.out.println(sb.toString()) System.out.println System.out System System.out sb.toString() sb.toString sb String[] args args
import java.util.Scanner;
class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    StringBuilder sb = new StringBuilder(sc.next());
    for(int i=0; i<sb.length(); i++){
    	sb.setCharAt(i, 'x');
    }
    System.out.println(sb.toString());
  }
}

    
    
