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

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


HASH_SIZE = 997

def hash_func(name, size):
    return hash(name) % size

def ht_create():
    return [None] * HASH_SIZE

def ht_insert(table, name, phone):
    idx = hash_func(name, len(table))
    table[idx] = ll_insert(table[idx], name, phone)
    return table

def ht_find(table, name):
    idx = hash_func(name, len(table))
    return ll_find(table[idx], name)

def ht_delete(table, name):
    idx = hash_func(name, len(table))
    table[idx] = ll_delete(table[idx], name)
    return table

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


if __name__ == "__main__":
    print("=== Тестирование связного списка ===")
    head = None
    head = ll_insert(head, "Ivan", "123-456")
    head = ll_insert(head, "Boris", "789-012")
    head = ll_insert(head, "Anna", "345-678")
    head = ll_insert(head, "Ivan", "111-222")
    print("LinkedList:", ll_list_all(head))

    print("\n=== Тестирование хеш-таблицы ===")
    ht = ht_create()
    ht = ht_insert(ht, "Ivan", "123-456")
    ht = ht_insert(ht, "Boris", "789-012")
    ht = ht_insert(ht, "Anna", "345-678")
    ht = ht_insert(ht, "Ivan", "111-222")
    print("HashTable entries:", ht_list_all(ht))
    print("Find Ivan:", ht_find(ht, "Ivan"))
    ht = ht_delete(ht, "Boris")
    print("After delete Boris:", ht_list_all(ht))