### watchedVideosByFriends 
from collections import deque
from collections import Counter
from typing import *
def f_gold(watchedVideos: List[List[str]],
    friends: List[List[int]],
    id: int,
    level: int,
) -> List[str]:
    n = len(friends)
    vis = [False] * n
    q = deque([id])
    vis[id] = True
    for _ in range(level):
        size = len(q)
        for _ in range(size):
            u = q.popleft()
            for v in friends[u]:
                if not vis[v]:
                    q.append(v)
                    vis[v] = True
    freq = Counter()
    for _ in range(len(q)):
        u = q.pop()
        for w in watchedVideos[u]:
            freq[w] += 1
    videos = list(freq.items())
    videos.sort(key=lambda x: (x[1], x[0]))
    return [v[0] for v in videos]