import java.util.*;

class Main {
	Scanner sc;
	String S;
	
	private void calc() {
		sc = new Scanner(System.in);
		S = sc.next();
		StringBuilder sb = new StringBuilder();
		for (int i = 0; i < S.length(); i++) sb.append('x');
		System.out.println(sb);
	}

	public static void main(String[] args) {
		new Main().calc();
	}
} import java.util.*; util.* java class Main {
	Scanner sc;
	String S;
	
	private void calc() {
		sc = new Scanner(System.in);
		S = sc.next();
		StringBuilder sb = new StringBuilder();
		for (int i = 0; i < S.length(); i++) sb.append('x');
		System.out.println(sb);
	}

	public static void main(String[] args) {
		new Main().calc();
	}
} Main Scanner sc; sc String S; S private void calc() {
		sc = new Scanner(System.in);
		S = sc.next();
		StringBuilder sb = new StringBuilder();
		for (int i = 0; i < S.length(); i++) sb.append('x');
		System.out.println(sb);
	} calc {
		sc = new Scanner(System.in);
		S = sc.next();
		StringBuilder sb = new StringBuilder();
		for (int i = 0; i < S.length(); i++) sb.append('x');
		System.out.println(sb);
	} sc = new Scanner(System.in) sc new Scanner(System.in) S = sc.next() S sc.next() sc.next sc 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 sb 'x' System.out.println(sb) System.out.println System.out System System.out sb public static void main(String[] args) {
		new Main().calc();
	} main {
		new Main().calc();
	} new Main().calc() new Main().calc new Main() String[] args args
import java.util.*;

class Main {
	Scanner sc;
	String S;
	
	private void calc() {
		sc = new Scanner(System.in);
		S = sc.next();
		StringBuilder sb = new StringBuilder();
		for (int i = 0; i < S.length(); i++) sb.append('x');
		System.out.println(sb);
	}

	public static void main(String[] args) {
		new Main().calc();
	}
}
