| f | from collections import defaultdict | f | from collections import defaultdict |
| n | deck_cards = defaultdict(set) | n | slcard = defaultdict(set) |
| player_decks = defaultdict(set) | | slchel = defaultdict(set) |
| while (line := input()): | | while (strk := input()): |
| l1, l2 = line.split(' / ') | | i, j = strk.split(' / ') |
| if l1.isdigit(): | | if i.isdigit(): |
| deck_cards[l1].add(l2) | | slcard[i].add(j) |
| else: | | else: |
| t | player_decks[l1].add(l2) | t | slchel[i].add(j) |
| for p, cs in player_decks.items(): | | for chel, card in slchel.items(): |
| player_decks[p] = len(set((card_name for c in cs for card_name in de | | slchel[chel] = len(set((card for ch in card for card in slcard[ch])) |
| ck_cards[c]))) | | ) |
| maxvalue = max(player_decks.values()) | | Maxi = max(slchel.values()) |
| print(*sorted([x for x in player_decks if player_decks[x] == maxvalue]), | | print(*sorted([card for card in slchel if slchel[card] == Maxi]), sep='\ |
| sep='\n') | | n') |