import java.util.Scanner;


// 137_b
public class Main {

    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);

        String k = scan.next();

        StringBuilder sb = new StringBuilder("");

        for (int i = 0; i < k.length(); i++) {
            sb.append("x");
        }

        out(sb.toString());

    }

    /*
     * 以下メソッド集
     */

    static long gcd(long a, long b) {

        return (b == 0) ? a : gcd(b, a % b);
    }

    static int gcd(int a, int b) {

        return (b == 0) ? a : gcd(b, a % b);
    }

    static void out(String info) {

        System.out.println(info);
    }

    static void out(int info) {

        System.out.println(info);
    }

    static void out(double info) {

        System.out.println(info);
    }

    static void out(long info) {

        System.out.println(info);
    }

} import java.util.Scanner; Scanner java.util public class Main {

    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);

        String k = scan.next();

        StringBuilder sb = new StringBuilder("");

        for (int i = 0; i < k.length(); i++) {
            sb.append("x");
        }

        out(sb.toString());

    }

    /*
     * 以下メソッド集
     */

    static long gcd(long a, long b) {

        return (b == 0) ? a : gcd(b, a % b);
    }

    static int gcd(int a, int b) {

        return (b == 0) ? a : gcd(b, a % b);
    }

    static void out(String info) {

        System.out.println(info);
    }

    static void out(int info) {

        System.out.println(info);
    }

    static void out(double info) {

        System.out.println(info);
    }

    static void out(long info) {

        System.out.println(info);
    }

} Main public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);

        String k = scan.next();

        StringBuilder sb = new StringBuilder("");

        for (int i = 0; i < k.length(); i++) {
            sb.append("x");
        }

        out(sb.toString());

    } main {

        Scanner scan = new Scanner(System.in);

        String k = scan.next();

        StringBuilder sb = new StringBuilder("");

        for (int i = 0; i < k.length(); i++) {
            sb.append("x");
        }

        out(sb.toString());

    } Scanner scan = new Scanner(System.in); scan new Scanner(System.in) String k = scan.next(); k scan.next() scan.next scan StringBuilder sb = new StringBuilder(""); sb new StringBuilder("") for (int i = 0; i < k.length(); i++) {
            sb.append("x");
        } int i = 0; int i = 0; i 0 i < k.length() i k.length() k.length k i++ i++ i {
            sb.append("x");
        } {
            sb.append("x");
        } sb.append("x") sb.append sb "x" out(sb.toString()) out sb.toString() sb.toString sb String[] args args static long gcd(long a, long b) {

        return (b == 0) ? a : gcd(b, a % b);
    } gcd {

        return (b == 0) ? a : gcd(b, a % b);
    } return (b == 0) ? a : gcd(b, a % b); (b == 0) ? a : gcd(b, a % b) (b == 0) b 0 a gcd(b, a % b) gcd b a % b a b long a a long b b static int gcd(int a, int b) {

        return (b == 0) ? a : gcd(b, a % b);
    } gcd {

        return (b == 0) ? a : gcd(b, a % b);
    } return (b == 0) ? a : gcd(b, a % b); (b == 0) ? a : gcd(b, a % b) (b == 0) b 0 a gcd(b, a % b) gcd b a % b a b int a a int b b static void out(String info) {

        System.out.println(info);
    } out {

        System.out.println(info);
    } System.out.println(info) System.out.println System.out System System.out info String info info static void out(int info) {

        System.out.println(info);
    } out {

        System.out.println(info);
    } System.out.println(info) System.out.println System.out System System.out info int info info static void out(double info) {

        System.out.println(info);
    } out {

        System.out.println(info);
    } System.out.println(info) System.out.println System.out System System.out info double info info static void out(long info) {

        System.out.println(info);
    } out {

        System.out.println(info);
    } System.out.println(info) System.out.println System.out System System.out info long info info public class Main {

    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);

        String k = scan.next();

        StringBuilder sb = new StringBuilder("");

        for (int i = 0; i < k.length(); i++) {
            sb.append("x");
        }

        out(sb.toString());

    }

    /*
     * 以下メソッド集
     */

    static long gcd(long a, long b) {

        return (b == 0) ? a : gcd(b, a % b);
    }

    static int gcd(int a, int b) {

        return (b == 0) ? a : gcd(b, a % b);
    }

    static void out(String info) {

        System.out.println(info);
    }

    static void out(int info) {

        System.out.println(info);
    }

    static void out(double info) {

        System.out.println(info);
    }

    static void out(long info) {

        System.out.println(info);
    }

} public class Main {

    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);

        String k = scan.next();

        StringBuilder sb = new StringBuilder("");

        for (int i = 0; i < k.length(); i++) {
            sb.append("x");
        }

        out(sb.toString());

    }

    /*
     * 以下メソッド集
     */

    static long gcd(long a, long b) {

        return (b == 0) ? a : gcd(b, a % b);
    }

    static int gcd(int a, int b) {

        return (b == 0) ? a : gcd(b, a % b);
    }

    static void out(String info) {

        System.out.println(info);
    }

    static void out(int info) {

        System.out.println(info);
    }

    static void out(double info) {

        System.out.println(info);
    }

    static void out(long info) {

        System.out.println(info);
    }

} Main
import java.util.Scanner;


// 137_b
public class Main {

    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);

        String k = scan.next();

        StringBuilder sb = new StringBuilder("");

        for (int i = 0; i < k.length(); i++) {
            sb.append("x");
        }

        out(sb.toString());

    }

    /*
     * 以下メソッド集
     */

    static long gcd(long a, long b) {

        return (b == 0) ? a : gcd(b, a % b);
    }

    static int gcd(int a, int b) {

        return (b == 0) ? a : gcd(b, a % b);
    }

    static void out(String info) {

        System.out.println(info);
    }

    static void out(int info) {

        System.out.println(info);
    }

    static void out(double info) {

        System.out.println(info);
    }

    static void out(long info) {

        System.out.println(info);
    }

}
