public List<Pair> two_list_dictionary(List<K> lst1, List<V> lst2) {
    List<Pair> mergedList = new List<Pair>();
    for (int i = 0; i < Math.max(lst1.size(), lst2.size()); i++) {
        K key;
        V value;
        key = lst1.get(i);
        value = lst2.get(i);
        mergedList.add(new Pair(key, value));
    }
    return mergedList;
}