` if name == 'main': lst_name = []

lst_score = []

for _ in range(int(input())):
    name = input()
    score = float(input())

    lst_name.append(name)

    lst_score.append(score)

res = []

num = sorted(list(set(lst_score)))[1]  #get 2nd ranked score (set eliminates dublicates)

for i in range(len(lst_score)):
    if lst_score[i] == num:
        res.append(lst_name[i])    # append name to result if score is matched

res = sorted(res)

for i in res:
    print(i)

```

if name == 'main':

n = int(input())
che = n
records = []
grades = []
maingrades = []
names = []

while(n != 0):
    name = input()
    score = float(input())
    records.append([name,score])
    n -=1

for i in range(len(records)):

    for j in records[i]:
        if (isinstance(j,float) == True) :
            grades.append(j)

grades.sort()
lowest = grades[0]
for i in range(len(grades)):

    if (grades[i] != lowest):
        maingrades.append(grades[i])

for i in range(len(records)):

    if (maingrades[0] in records[i]):

        for j in records[i]:
            if(isinstance(j,str) == True):
                names.append(j)

names.sort()
for i in names:    
    print(i)

not the best code but works,

def lowest_in_list(list_name: list) -> int:
    low_item=list_name[0][1]
    for name, score in list_name:
        if score < low_item:
            low_item = score
    return(low_item)

if __name__ == '__main__':
    students = []
    for _ in range(int(input())):
        name = input()
        score = float(input())
        students.append([name,score])

    #students = [['Harry', 37.21], ['Berry', 37.21], ['Tina', 37.2], ['Akriti', 41], ['Harsh', 39]]
    lowest_marks=lowest_in_list(students)

    # new list to find the second lowest item
    second_list = []
    for name, score in students:
        if score != lowest_marks:
            second_list.append([name,score])
    second_lowest = lowest_in_list(second_list)

    names=[]
    for name, score in students:
        if score == second_lowest:
            names.append(name)

    for name in sorted(names):
        print(name)

why isn't this working?

if name == 'main': records=[] for _ in range(int(input())): name = input() score = float(input()) records.append([name, score])

s=set()
for i in range(len(records)):
    s.add(records[i][1])

sc=list(s)

sl=sc[len(sc)-2]

n=[]

for i in range(len(records)):
    if records[i][1]==sl:
        n.append(records[i][0])

n.sort()
for i in range(len(n)):
    print(n[i])

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)