import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/* 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
	{
		final String text = "a,b,c,test1=0 test2=1 test3=2 test4=3 t Request=4,test6_r_a=5,d,e,f";
        final Pattern pattern = Pattern.compile("\\w+(?:\\h+\\w+)*=\\w+");
        final Matcher matcher = pattern.matcher(text);
        while (matcher.find()) {
            System.out.println(matcher.group());
        }
	}
}