To solve this problem, we can create a nested list of students and their grades. Then, we can find the second lowest grade by sorting the list of grades and selecting the second element. Finally, we can iterate through the nested list and print the names of any students with the second lowest grade.

Here is an example implementation:

# read in the number of students
n = int(input())

# create a nested list of students and their grades
students = []
for i in range(n):
    name = input()
    grade = float(input())
    students.append([name, grade])

# find the second lowest grade
grades = sorted(set([s[1] for s in students]))
second_lowest_grade = grades[1]

# print the names of any students with the second lowest grade
names = sorted([s[0] for s in students if s[1] == second_lowest_grade])
for name in names:
    print(name)

For example, if the input is:

5
Harry
37.21
Berry
37.21
Tina
37.2
Akriti
41
Harsh
39

The output would be:

Berry
Harry