Read the number of students

n = int(input())

Initialize an empty list to store students' name and grade pairs

students = []

Read the student data

for _ in range(n): name = input() grade = float(input()) students.append([name, grade])

Extract all the unique grades, sort them, and get the second lowest grade

grades = sorted(set([student[1] for student in students]))

Find the second lowest grade

second_lowest_grade = grades[1]

Find the names of students with the second lowest grade

second_lowest_students = [student[0] for student in students if student[1] == second_lowest_grade]

Sort the names alphabetically

second_lowest_students.sort()

Print the names

for student in second_lowest_students: print(student)