/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
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
	{
		Pattern p = Pattern.compile("^(.*?)_(CH|IT|FR|GB)-(EN|IT|FR|DE)_(.*)$");
		Scanner sc = new Scanner(System.in);
		String input;
		while (sc.hasNextLine()) {
			input = sc.nextLine();
			Matcher m = p.matcher(input);
			if (m.matches()) {
				String[] result = {m.group(1), m.group(2), m.group(3), m.group(4) };
				System.out.println("Matched : " + Arrays.toString(result));
			}
			else { 
				System.out.println("No match for " + input);
			}
		}
	}
}

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

TXlQcmVmaXhfQ0gtREVfUHJvZHVjdE5hbWUucGRmCm15LXByZWZpeF9GUi1GUl9tb25fcHJvZHVpdC0xLjMucGRm

MyPrefix_CH-DE_ProductName.pdf
my-prefix_FR-FR_mon_produit-1.3.pdf