
import java.io.*;
import java.util.*;

public class Main {

    public static void main(String[] args) throws Exception {
        PrintWriter pw = new PrintWriter(System.out);
        Scanner sc = new Scanner(System.in);

        String in = sc.next();
        int x = in.length();
        String out = "";
        for(int i = 0; i < x; i++)
            out+= "x";
        pw.println(out);

        pw.close();
    }

    static class Scanner {
        StringTokenizer st;
        BufferedReader br;

        public Scanner(InputStream s) {
            br = new BufferedReader(new InputStreamReader(s));
        }

        public Scanner(String file) throws FileNotFoundException {
            br = new BufferedReader(new FileReader(file));
        }

        public String next() throws IOException {
            while (st == null || !st.hasMoreTokens())
                st = new StringTokenizer(br.readLine());
            return st.nextToken();
        }

        public int nextInt() throws IOException {
            return Integer.parseInt(next());
        }

        public long nextLong() throws IOException {
            return Long.parseLong(next());
        }

        public String nextLine() throws IOException {
            return br.readLine();
        }

        public double nextDouble() throws IOException {
            return Double.parseDouble(next());
        }

        public boolean ready() throws IOException {
            return br.ready();
        }

    }
}

 import java.io.*; io.* java import java.util.*; util.* java public class Main {

    public static void main(String[] args) throws Exception {
        PrintWriter pw = new PrintWriter(System.out);
        Scanner sc = new Scanner(System.in);

        String in = sc.next();
        int x = in.length();
        String out = "";
        for(int i = 0; i < x; i++)
            out+= "x";
        pw.println(out);

        pw.close();
    }

    static class Scanner {
        StringTokenizer st;
        BufferedReader br;

        public Scanner(InputStream s) {
            br = new BufferedReader(new InputStreamReader(s));
        }

        public Scanner(String file) throws FileNotFoundException {
            br = new BufferedReader(new FileReader(file));
        }

        public String next() throws IOException {
            while (st == null || !st.hasMoreTokens())
                st = new StringTokenizer(br.readLine());
            return st.nextToken();
        }

        public int nextInt() throws IOException {
            return Integer.parseInt(next());
        }

        public long nextLong() throws IOException {
            return Long.parseLong(next());
        }

        public String nextLine() throws IOException {
            return br.readLine();
        }

        public double nextDouble() throws IOException {
            return Double.parseDouble(next());
        }

        public boolean ready() throws IOException {
            return br.ready();
        }

    }
} Main public static void main(String[] args) throws Exception {
        PrintWriter pw = new PrintWriter(System.out);
        Scanner sc = new Scanner(System.in);

        String in = sc.next();
        int x = in.length();
        String out = "";
        for(int i = 0; i < x; i++)
            out+= "x";
        pw.println(out);

        pw.close();
    } main {
        PrintWriter pw = new PrintWriter(System.out);
        Scanner sc = new Scanner(System.in);

        String in = sc.next();
        int x = in.length();
        String out = "";
        for(int i = 0; i < x; i++)
            out+= "x";
        pw.println(out);

        pw.close();
    } PrintWriter pw = new PrintWriter(System.out); pw new PrintWriter(System.out) Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String in = sc.next(); in sc.next() sc.next sc int x = in.length(); x in.length() in.length in String out = ""; out "" for(int i = 0; i < x; i++)
            out+= "x"; int i = 0; int i = 0; i 0 i < x i x i++ i++ i out+= "x"; out+= "x" out "x" pw.println(out) pw.println pw out pw.close() pw.close pw String[] args args static class Scanner {
        StringTokenizer st;
        BufferedReader br;

        public Scanner(InputStream s) {
            br = new BufferedReader(new InputStreamReader(s));
        }

        public Scanner(String file) throws FileNotFoundException {
            br = new BufferedReader(new FileReader(file));
        }

        public String next() throws IOException {
            while (st == null || !st.hasMoreTokens())
                st = new StringTokenizer(br.readLine());
            return st.nextToken();
        }

        public int nextInt() throws IOException {
            return Integer.parseInt(next());
        }

        public long nextLong() throws IOException {
            return Long.parseLong(next());
        }

        public String nextLine() throws IOException {
            return br.readLine();
        }

        public double nextDouble() throws IOException {
            return Double.parseDouble(next());
        }

        public boolean ready() throws IOException {
            return br.ready();
        }

    } Scanner StringTokenizer st; st BufferedReader br; br public Scanner(InputStream s) {
            br = new BufferedReader(new InputStreamReader(s));
        } Scanner {
            br = new BufferedReader(new InputStreamReader(s));
        } br = new BufferedReader(new InputStreamReader(s)) br new BufferedReader(new InputStreamReader(s)) InputStream s s public Scanner(String file) throws FileNotFoundException {
            br = new BufferedReader(new FileReader(file));
        } Scanner {
            br = new BufferedReader(new FileReader(file));
        } br = new BufferedReader(new FileReader(file)) br new BufferedReader(new FileReader(file)) String file file public String next() throws IOException {
            while (st == null || !st.hasMoreTokens())
                st = new StringTokenizer(br.readLine());
            return st.nextToken();
        } next {
            while (st == null || !st.hasMoreTokens())
                st = new StringTokenizer(br.readLine());
            return st.nextToken();
        } while (st == null || !st.hasMoreTokens())
                st = new StringTokenizer(br.readLine()); st == null || !st.hasMoreTokens() st == null st null !st.hasMoreTokens() st.hasMoreTokens() st.hasMoreTokens st st = new StringTokenizer(br.readLine()) st new StringTokenizer(br.readLine()) return st.nextToken(); st.nextToken() st.nextToken st public int nextInt() throws IOException {
            return Integer.parseInt(next());
        } nextInt {
            return Integer.parseInt(next());
        } return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer next() next public long nextLong() throws IOException {
            return Long.parseLong(next());
        } nextLong {
            return Long.parseLong(next());
        } return Long.parseLong(next()); Long.parseLong(next()) Long.parseLong Long next() next public String nextLine() throws IOException {
            return br.readLine();
        } nextLine {
            return br.readLine();
        } return br.readLine(); br.readLine() br.readLine br public double nextDouble() throws IOException {
            return Double.parseDouble(next());
        } nextDouble {
            return Double.parseDouble(next());
        } return Double.parseDouble(next()); Double.parseDouble(next()) Double.parseDouble Double next() next public boolean ready() throws IOException {
            return br.ready();
        } ready {
            return br.ready();
        } return br.ready(); br.ready() br.ready br public class Main {

    public static void main(String[] args) throws Exception {
        PrintWriter pw = new PrintWriter(System.out);
        Scanner sc = new Scanner(System.in);

        String in = sc.next();
        int x = in.length();
        String out = "";
        for(int i = 0; i < x; i++)
            out+= "x";
        pw.println(out);

        pw.close();
    }

    static class Scanner {
        StringTokenizer st;
        BufferedReader br;

        public Scanner(InputStream s) {
            br = new BufferedReader(new InputStreamReader(s));
        }

        public Scanner(String file) throws FileNotFoundException {
            br = new BufferedReader(new FileReader(file));
        }

        public String next() throws IOException {
            while (st == null || !st.hasMoreTokens())
                st = new StringTokenizer(br.readLine());
            return st.nextToken();
        }

        public int nextInt() throws IOException {
            return Integer.parseInt(next());
        }

        public long nextLong() throws IOException {
            return Long.parseLong(next());
        }

        public String nextLine() throws IOException {
            return br.readLine();
        }

        public double nextDouble() throws IOException {
            return Double.parseDouble(next());
        }

        public boolean ready() throws IOException {
            return br.ready();
        }

    }
} public class Main {

    public static void main(String[] args) throws Exception {
        PrintWriter pw = new PrintWriter(System.out);
        Scanner sc = new Scanner(System.in);

        String in = sc.next();
        int x = in.length();
        String out = "";
        for(int i = 0; i < x; i++)
            out+= "x";
        pw.println(out);

        pw.close();
    }

    static class Scanner {
        StringTokenizer st;
        BufferedReader br;

        public Scanner(InputStream s) {
            br = new BufferedReader(new InputStreamReader(s));
        }

        public Scanner(String file) throws FileNotFoundException {
            br = new BufferedReader(new FileReader(file));
        }

        public String next() throws IOException {
            while (st == null || !st.hasMoreTokens())
                st = new StringTokenizer(br.readLine());
            return st.nextToken();
        }

        public int nextInt() throws IOException {
            return Integer.parseInt(next());
        }

        public long nextLong() throws IOException {
            return Long.parseLong(next());
        }

        public String nextLine() throws IOException {
            return br.readLine();
        }

        public double nextDouble() throws IOException {
            return Double.parseDouble(next());
        }

        public boolean ready() throws IOException {
            return br.ready();
        }

    }
} Main

import java.io.*;
import java.util.*;

public class Main {

    public static void main(String[] args) throws Exception {
        PrintWriter pw = new PrintWriter(System.out);
        Scanner sc = new Scanner(System.in);

        String in = sc.next();
        int x = in.length();
        String out = "";
        for(int i = 0; i < x; i++)
            out+= "x";
        pw.println(out);

        pw.close();
    }

    static class Scanner {
        StringTokenizer st;
        BufferedReader br;

        public Scanner(InputStream s) {
            br = new BufferedReader(new InputStreamReader(s));
        }

        public Scanner(String file) throws FileNotFoundException {
            br = new BufferedReader(new FileReader(file));
        }

        public String next() throws IOException {
            while (st == null || !st.hasMoreTokens())
                st = new StringTokenizer(br.readLine());
            return st.nextToken();
        }

        public int nextInt() throws IOException {
            return Integer.parseInt(next());
        }

        public long nextLong() throws IOException {
            return Long.parseLong(next());
        }

        public String nextLine() throws IOException {
            return br.readLine();
        }

        public double nextDouble() throws IOException {
            return Double.parseDouble(next());
        }

        public boolean ready() throws IOException {
            return br.ready();
        }

    }
}


