/*
Date 			: 		07 May 2014
*/
 
import java.util.Scanner;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
 
public class Main{
	public static void main(String[] args){
 
		//Declaring all required variables
		String inputString, inputRegex, searchText;
		int matchCount = 0;
 
		//create a new scanner object
		Scanner scannerObj = new Scanner(System.in);
 
		//get the inputString
		inputString = scannerObj.nextLine();
 
		searchText = inputString;
 
		System.out.println("Read string : " + inputString);
 
		//apply pattern to inputString
		System.out.println(searchText.matches("\\Q<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\\E"));
		System.out.println(searchText.matches(Pattern.quote("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>")));
 
		System.out.println(searchText.replaceAll("\\Q<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\\E", "XXX"));
		System.out.println(searchText.replaceAll(Pattern.quote("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>"), "XXX"));
	}
}

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>