/* 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
	{
 
		String s = "0225 : appt, (parking) niv -2 0015_1 5étage";
		//String s = "azeaze4 T4 45-azej565 5T 555T 44444";
		Pattern pattern = Pattern.compile("(?<=_|\\b)\\d+(?=\\b|_)", Pattern.UNICODE_CHARACTER_CLASS);
		Matcher matcher = pattern.matcher(s);
		while (matcher.find()){
			System.out.println(matcher.group(0)); 
		} 
	}
}

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