import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
 
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
        String regex = "\\b(?:leng|wid|dep)th\\h+\\d+(?:\\.\\d+)?(?:\\h+cm)?\\b";
        String s = "length 10 cm width 2 cm depth 0.5 cm / length 10 cm width 2 depth 0.5 cm\n";
 
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(s);
 
        while (matcher.find()) {
            System.out.println(matcher.group(0));
        }
	}
}

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