import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        Solver solver = new Solver();
        solver.solve(in, out);
        out.close();
    }

    static class Solver {
        public void solve(Scanner in, PrintWriter out) {
            String S = in.next();
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < S.length(); i++) {
                sb.append("x");
            }
            out.println(sb.toString());
            // out.println("x".repeat(S.length()));
        }
    }
} import java.io.InputStream; InputStream java.io import java.io.OutputStream; OutputStream java.io import java.io.PrintWriter; PrintWriter java.io import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        Solver solver = new Solver();
        solver.solve(in, out);
        out.close();
    }

    static class Solver {
        public void solve(Scanner in, PrintWriter out) {
            String S = in.next();
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < S.length(); i++) {
                sb.append("x");
            }
            out.println(sb.toString());
            // out.println("x".repeat(S.length()));
        }
    }
} Main public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        Solver solver = new Solver();
        solver.solve(in, out);
        out.close();
    } main {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        Solver solver = new Solver();
        solver.solve(in, out);
        out.close();
    } InputStream inputStream = System.in; inputStream System.in System System.in OutputStream outputStream = System.out; outputStream System.out System System.out Scanner in = new Scanner(inputStream); in new Scanner(inputStream) PrintWriter out = new PrintWriter(outputStream); out new PrintWriter(outputStream) Solver solver = new Solver(); solver new Solver() solver.solve(in, out) solver.solve solver in out out.close() out.close out String[] args args static class Solver {
        public void solve(Scanner in, PrintWriter out) {
            String S = in.next();
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < S.length(); i++) {
                sb.append("x");
            }
            out.println(sb.toString());
            // out.println("x".repeat(S.length()));
        }
    } Solver public void solve(Scanner in, PrintWriter out) {
            String S = in.next();
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < S.length(); i++) {
                sb.append("x");
            }
            out.println(sb.toString());
            // out.println("x".repeat(S.length()));
        } solve {
            String S = in.next();
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < S.length(); i++) {
                sb.append("x");
            }
            out.println(sb.toString());
            // out.println("x".repeat(S.length()));
        } String S = in.next(); S in.next() in.next in StringBuilder sb = new StringBuilder(); sb new StringBuilder() for (int i = 0; i < S.length(); i++) {
                sb.append("x");
            } int i = 0; int i = 0; i 0 i < S.length() i S.length() S.length S i++ i++ i {
                sb.append("x");
            } {
                sb.append("x");
            } sb.append("x") sb.append sb "x" out.println(sb.toString()) out.println out sb.toString() sb.toString sb Scanner in in PrintWriter out out public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        Solver solver = new Solver();
        solver.solve(in, out);
        out.close();
    }

    static class Solver {
        public void solve(Scanner in, PrintWriter out) {
            String S = in.next();
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < S.length(); i++) {
                sb.append("x");
            }
            out.println(sb.toString());
            // out.println("x".repeat(S.length()));
        }
    }
} public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        Solver solver = new Solver();
        solver.solve(in, out);
        out.close();
    }

    static class Solver {
        public void solve(Scanner in, PrintWriter out) {
            String S = in.next();
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < S.length(); i++) {
                sb.append("x");
            }
            out.println(sb.toString());
            // out.println("x".repeat(S.length()));
        }
    }
} Main
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        Solver solver = new Solver();
        solver.solve(in, out);
        out.close();
    }

    static class Solver {
        public void solve(Scanner in, PrintWriter out) {
            String S = in.next();
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < S.length(); i++) {
                sb.append("x");
            }
            out.println(sb.toString());
            // out.println("x".repeat(S.length()));
        }
    }
}