def llist_insert(head, name, phone):
    current = head
    while current is not None:
        if current['name'] == name:
            current['phone'] = phone
            return head
        current = current['next']
    new_node = {'name': name, 'phone': phone, 'next': None}
    if head is None:
        return new_node
    current = head
    while current['next'] is not None:
        current = current['next']
    current['next'] = new_node
    return head


def llist_find(head, name):
    current = head
    while current is not None:
        if current['name'] == name:
            return current['phone']
        current = current['next']
    return None


def llist_delete(head, name):
    if head is None:
        return None
    if head['name'] == name:
        return head['next']
    prev = head
    current = head['next']
    while current is not None:
        if current['name'] == name:
            prev['next'] = current['next']
            return head
        prev = current
        current = current['next']
    return head


def llist_get_all(head):
    entries = []
    current = head
    while current is not None:
        entries.append((current['name'], current['phone']))
        current = current['next']
    entries.sort(key=lambda x: x[0])
    return entries


BUCKET_SIZE = 1000

def ht_create():
    return [None] * BUCKET_SIZE


def ht_insert(table, name, phone):
    idx = hash(name) % len(table)
    table[idx] = llist_insert(table[idx], name, phone)
    return table


def ht_find(table, name):
    idx = hash(name) % len(table)
    return llist_find(table[idx], name)


def ht_delete(table, name):
    idx = hash(name) % len(table)
    table[idx] = llist_delete(table[idx], name)
    return table


def ht_get_all(table):
    all_entries = []
    for head in table:
        current = head
        while current is not None:
            all_entries.append((current['name'], current['phone']))
            current = current['next']
    all_entries.sort(key=lambda x: x[0])
    return all_entries


if __name__ == '__main__':
    table = ht_create()
    ht_insert(table, "Alice", "111-222")
    ht_insert(table, "Bob", "333-444")
    ht_insert(table, "Alice", "555-666")
    print(ht_find(table, "Alice"))
    print(ht_find(table, "Bob"))
    print(ht_find(table, "Charlie"))
    ht_delete(table, "Bob")
    print(ht_get_all(table))