[HackerRank] 04. Nested List

student = []

if __name__ == '__main__':
    for _ in range(int(input())):
        name = input()
        score = float(input())
        student.append((name, score))
# set을 통해 중복 원소 제거
second_lowest = sorted(set([score for name, score in student]))[1]
# join method is a string method which returns a string concatenated with the elements of an iterable
print('\n'.join(sorted([name for name, score in student if score == second_lowest])))