import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Scanner;

class Main {
	public static void main(String[] args) throws Exception {
		new Main().run();
	}

	void run() {
		Scanner sc = new Scanner(System.in);
		String S=sc.next();
		for(int i=0;i<S.length();++i) {
			System.out.print("x");
		}
		System.out.println();
	}

	static void tr(Object... objects) {
		System.out.println(Arrays.deepToString(objects));
	}

} import java.io.PrintWriter; PrintWriter java.io import java.util.Arrays; Arrays java.util import java.util.HashMap; HashMap java.util import java.util.Scanner; Scanner java.util class Main {
	public static void main(String[] args) throws Exception {
		new Main().run();
	}

	void run() {
		Scanner sc = new Scanner(System.in);
		String S=sc.next();
		for(int i=0;i<S.length();++i) {
			System.out.print("x");
		}
		System.out.println();
	}

	static void tr(Object... objects) {
		System.out.println(Arrays.deepToString(objects));
	}

} Main public static void main(String[] args) throws Exception {
		new Main().run();
	} main {
		new Main().run();
	} new Main().run() new Main().run new Main() String[] args args void run() {
		Scanner sc = new Scanner(System.in);
		String S=sc.next();
		for(int i=0;i<S.length();++i) {
			System.out.print("x");
		}
		System.out.println();
	} run {
		Scanner sc = new Scanner(System.in);
		String S=sc.next();
		for(int i=0;i<S.length();++i) {
			System.out.print("x");
		}
		System.out.println();
	} 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) {
			System.out.print("x");
		} int i=0; int i=0; i 0 i<S.length() i S.length() S.length S ++i ++i i {
			System.out.print("x");
		} {
			System.out.print("x");
		} System.out.print("x") System.out.print System.out System System.out "x" System.out.println() System.out.println System.out System System.out static void tr(Object... objects) {
		System.out.println(Arrays.deepToString(objects));
	} tr {
		System.out.println(Arrays.deepToString(objects));
	} System.out.println(Arrays.deepToString(objects)) System.out.println System.out System System.out Arrays.deepToString(objects) Arrays.deepToString Arrays objects Object... objects objects
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Scanner;

class Main {
	public static void main(String[] args) throws Exception {
		new Main().run();
	}

	void run() {
		Scanner sc = new Scanner(System.in);
		String S=sc.next();
		for(int i=0;i<S.length();++i) {
			System.out.print("x");
		}
		System.out.println();
	}

	static void tr(Object... objects) {
		System.out.println(Arrays.deepToString(objects));
	}

}
