public void reduce(String key, Cons value, MapReduce mr) {
// System.out.println(" red1 key = " + key + " val = " + value.toString());
int sum = 0;
for (Cons lst = value; lst != null; lst = rest(lst)) {
sum += Integer.decode((String) first((Cons) first(lst)));
}
mr.collect_reduce(key, new Integer(sum));
}
