if __name__ == '__main__':
    students = []
    for _ in range(int(input())):
        name = input()
        score = float(input())
        
        students.append([name, score])
        
    # Get the sorted list of unique scores
    scores = sorted(set(score for name, score in students))

    # Ensure there are at least two unique scores
    if len(scores) > 1:
        # The second lowest score would be the second element in the list
        second_lowest_score = scores[1]
        
        # Find all students with the second lowest score
        second_lowest_students = [name for name, score in students if score == second_lowest_score]
        
        # Sort the names alphabetically
        second_lowest_students.sort()
        
        # Print each student's name on a new line
        for student in second_lowest_students:
            # print(10*"-")
            print(student)
    else:
        print("There is no second lowest score.")