/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.util.regex.*;

/* 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
	{
        String s = "\n";
        Pattern p = Pattern.compile(".");
        System.out.println(p.matcher(s).matches()); // false
        p = Pattern.compile(".", Pattern.DOTALL);
        System.out.println(p.matcher(s).matches()); // true
	}
}