if __name__ == '__main__':
    student=[]
    for _ in range(int(input())):
        name = input()
        score = float(input())
        student.append([name,score])
    score =[i[1] for i in student]
    unique_scores= sorted(set(score))
    second_lowest_score = unique_scores[1]
    second_lowest_students=[i[0] for i in student if i[1] == second_lowest_score]
    second_lowest_students.sort()
    for student_name in second_lowest_students:
        print(student_name)