import java.util.*;
import java.lang.*;
import java.util.regex.*;
 
class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Pattern withCE = Pattern.compile("^a\u030A$",Pattern.CANON_EQ);
		Pattern withoutCE = Pattern.compile("^a\u030A$");
		String input = "\u00E5";
 
		System.out.println("Matches with canon eq: " + withCE.matcher(input).matches());
		System.out.println("Matches without canon eq: " + withoutCE.matcher(input).matches());
	}
}

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