names = []
scores = []

if __name__ == '__main__':
    for _ in range(int(input())):
        name = input()
        score = float(input())
        names.append(name)
        scores.append(score)

scores = sorted(scores)

min_score = min(scores)

scores_without_min = [s for s in scores if s != min_score]

second_lowest_score = min(scores_without_min)

names_with_second_lowest_score = []
for name, score in zip(names, scores):
    if score == second_lowest_score:
        names_with_second_lowest_score.append(name)

names_with_second_lowest_score.sort()

for name in names_with_second_lowest_score:
    print(name)