import java.util.Iterator;
import java.util.Map;
import java.util.Set;
public class Main {
public static void main(String[] args) {
Map map = System.getenv();
Set keys = map.keySet();
Iterator iterator = keys.iterator();
while (iterator.hasNext()) {
String key = (String) iterator.next();
String value = (String) map.get(key);
System.out.println(key + " = " + value);
}
}
}