import java.util.*;

public class Main {
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();


        for (int i=0; i<s.length(); i++) {
            s = s.replace(s.charAt(i),'x');
        }

        System.out.println(s);

    }
} import java.util.*; util.* java public class Main {
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();


        for (int i=0; i<s.length(); i++) {
            s = s.replace(s.charAt(i),'x');
        }

        System.out.println(s);

    }
} Main public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();


        for (int i=0; i<s.length(); i++) {
            s = s.replace(s.charAt(i),'x');
        }

        System.out.println(s);

    } main {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();


        for (int i=0; i<s.length(); i++) {
            s = s.replace(s.charAt(i),'x');
        }

        System.out.println(s);

    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String s = sc.next(); s sc.next() sc.next sc for (int i=0; i<s.length(); i++) {
            s = s.replace(s.charAt(i),'x');
        } int i=0; int i=0; i 0 i<s.length() i s.length() s.length s i++ i++ i {
            s = s.replace(s.charAt(i),'x');
        } {
            s = s.replace(s.charAt(i),'x');
        } s = s.replace(s.charAt(i),'x') s s.replace(s.charAt(i),'x') s.replace s s.charAt(i) s.charAt s i 'x' System.out.println(s) System.out.println System.out System System.out s String args[] args public class Main {
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();


        for (int i=0; i<s.length(); i++) {
            s = s.replace(s.charAt(i),'x');
        }

        System.out.println(s);

    }
} public class Main {
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();


        for (int i=0; i<s.length(); i++) {
            s = s.replace(s.charAt(i),'x');
        }

        System.out.println(s);

    }
} Main
import java.util.*;

public class Main {
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();


        for (int i=0; i<s.length(); i++) {
            s = s.replace(s.charAt(i),'x');
        }

        System.out.println(s);

    }
}
