if __name__ == '__main__':
    score_dict = {}
    for _ in range(int(input())):
        name = input()
        score = float(input())
        if score not in score_dict:
            score_dict[score] = []
        score_dict[score].append(name)
    
    second_lowest_scores = sorted(score_dict.items())[1][1]

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