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    from collections import defaultdict

    if name == 'main':

    records = defaultdict(set)
    for _ in range(int(input())):
        name = input()
        score = float(input())
        records[score].add(name)
    
    second_lowest_grade = sorted(records)[1]
    second_lowest_students = records[second_lowest_grade]
    for _ in sorted(second_lowest_students):
        print(_)