import java.util.Scanner;
import java.util.Comparator;
import java.util.Arrays;
import java.util.Collections;
import java.util.StringJoiner;
class Main{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    String S = scan.next();
    int N = S.length();
    String[] split = S.split("");
    //文字置き換え
    for (int i = 0; i < N ; i++) {
      split[i] = "x";
    }
    //文字列に直す
    StringJoiner T = new StringJoiner("");
    for (String s : split) {
      T.add(s);
    }
    System.out.println(T.toString());      
  }
} import java.util.Scanner; Scanner java.util import java.util.Comparator; Comparator java.util import java.util.Arrays; Arrays java.util import java.util.Collections; Collections java.util import java.util.StringJoiner; StringJoiner java.util class Main{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    String S = scan.next();
    int N = S.length();
    String[] split = S.split("");
    //文字置き換え
    for (int i = 0; i < N ; i++) {
      split[i] = "x";
    }
    //文字列に直す
    StringJoiner T = new StringJoiner("");
    for (String s : split) {
      T.add(s);
    }
    System.out.println(T.toString());      
  }
} Main public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    String S = scan.next();
    int N = S.length();
    String[] split = S.split("");
    //文字置き換え
    for (int i = 0; i < N ; i++) {
      split[i] = "x";
    }
    //文字列に直す
    StringJoiner T = new StringJoiner("");
    for (String s : split) {
      T.add(s);
    }
    System.out.println(T.toString());      
  } main {
    Scanner scan = new Scanner(System.in);
    String S = scan.next();
    int N = S.length();
    String[] split = S.split("");
    //文字置き換え
    for (int i = 0; i < N ; i++) {
      split[i] = "x";
    }
    //文字列に直す
    StringJoiner T = new StringJoiner("");
    for (String s : split) {
      T.add(s);
    }
    System.out.println(T.toString());      
  } Scanner scan = new Scanner(System.in); scan new Scanner(System.in) String S = scan.next(); S scan.next() scan.next scan int N = S.length(); N S.length() S.length S String[] split = S.split(""); split S.split("") S.split S "" for (int i = 0; i < N ; i++) {
      split[i] = "x";
    } int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
      split[i] = "x";
    } {
      split[i] = "x";
    } split[i] = "x" split[i] split i "x" StringJoiner T = new StringJoiner(""); T new StringJoiner("") for (String s : split) {
      T.add(s);
    } String s split {
      T.add(s);
    } {
      T.add(s);
    } T.add(s) T.add T s System.out.println(T.toString()) System.out.println System.out System System.out T.toString() T.toString T String[] args args
import java.util.Scanner;
import java.util.Comparator;
import java.util.Arrays;
import java.util.Collections;
import java.util.StringJoiner;
class Main{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    String S = scan.next();
    int N = S.length();
    String[] split = S.split("");
    //文字置き換え
    for (int i = 0; i < N ; i++) {
      split[i] = "x";
    }
    //文字列に直す
    StringJoiner T = new StringJoiner("");
    for (String s : split) {
      T.add(s);
    }
    System.out.println(T.toString());      
  }
}