largest_number.py

from itertools import permutations


def largest_number_naive(numbers):
    numbers = list(map(str, numbers))

    largest = 0

    for permutation in permutations(numbers):
        largest = max(largest, int("".join(permutation)))

    return largest


if __name__ == '__main__':
    _ = int(input())
    input_numbers = input().split()
    print(largest_number_naive(input_numbers))