/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner sc = new Scanner(System.in);
		System.out.print("Entre com o comando: ");
        String entrada = sc.nextLine();
        Boolean continuar;
 
        do {
        	String resultado = entrada.replaceAll("[a-zA-Z&&[^xX]][xX]", ""); 
        	continuar = !resultado.equals(entrada);
        	entrada = resultado;
        } while (continuar);
 
        System.out.println(entrada);
	}
}

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