import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		final char c = 'x';

		StringBuilder sb = new StringBuilder(s.length());
		for(int i = 0; i < s.length(); i++) {
			sb.append(c);
		}
		System.out.println(sb.toString());
	}

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

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		final char c = 'x';

		StringBuilder sb = new StringBuilder(s.length());
		for(int i = 0; i < s.length(); i++) {
			sb.append(c);
		}
		System.out.println(sb.toString());
	}

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		final char c = 'x';

		StringBuilder sb = new StringBuilder(s.length());
		for(int i = 0; i < s.length(); i++) {
			sb.append(c);
		}
		System.out.println(sb.toString());
	} main {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		final char c = 'x';

		StringBuilder sb = new StringBuilder(s.length());
		for(int i = 0; i < s.length(); i++) {
			sb.append(c);
		}
		System.out.println(sb.toString());
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String s = sc.next(); s sc.next() sc.next sc final char c = 'x'; c 'x' StringBuilder sb = new StringBuilder(s.length()); sb new StringBuilder(s.length()) for(int i = 0; i < s.length(); i++) {
			sb.append(c);
		} int i = 0; int i = 0; i 0 i < s.length() i s.length() s.length s i++ i++ i {
			sb.append(c);
		} {
			sb.append(c);
		} sb.append(c) sb.append sb c System.out.println(sb.toString()) System.out.println System.out System System.out sb.toString() sb.toString sb String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		final char c = 'x';

		StringBuilder sb = new StringBuilder(s.length());
		for(int i = 0; i < s.length(); i++) {
			sb.append(c);
		}
		System.out.println(sb.toString());
	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		final char c = 'x';

		StringBuilder sb = new StringBuilder(s.length());
		for(int i = 0; i < s.length(); i++) {
			sb.append(c);
		}
		System.out.println(sb.toString());
	}

} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		final char c = 'x';

		StringBuilder sb = new StringBuilder(s.length());
		for(int i = 0; i < s.length(); i++) {
			sb.append(c);
		}
		System.out.println(sb.toString());
	}

}
