def second_lowest(lst): sort = sorted(lst, key=lambda x: x[1]) lowest = sort[0][1] sec_low = None

for name, score in sort:
    if score > lowest:
        sec_low = score
        break

name_lst = [name for name, score in sort if score == sec_low]

for n in sorted(name_lst):
    print(n)

if name == 'main': listt = [] for _ in range(int(input())): name = input() score = float(input()) listt.append([name, score])

second_lowest(listt)